Question: Unlike exploring wrecks for recreational divers, in government concerns they are analyzed over a period of years in order to identify environmental dangers and protect military secrets.

(A) Unlike exploring wrecks for recreational divers, in government concerns they are analyzed
(B) Unlike wrecks that are explored by recreational divers, in exploring for government concerns, they are analyzed
(C) Unlike recreational divers exploring wrecks, analyzing wrecks in government concerns is done
(D) For recreational divers, wrecks are explored briefly, whereas for government concerns wrecks are analyzed
(E) For recreational divers, the exploration of wrecks is brief, whereas for government concerns they are analyzed

Correct Answer: D
Explanation: “For recreational divers, wrecks are explored briefly, whereas for government concerns wrecks are analyzed…” - Correct. The phrase “recreational divers” is compared with the phrase “government concerns” in the correct way. The statement stated in this answer choice is structurally parallel. Therefore, option D does not possess a parallelism issue in the sentence. It satisfies the meaning of the sentence in a logical way. There lies no grammar issue in the sentence. Hence, option D is the correct answer as it meets the rules of grammar. Let’s take a look at the other options.

Option A
“Unlike exploring wrecks for recreational divers, in government concerns they are analyzed…”- Incorrect. The statement stated in this answer choice is not structurally parallel. The expression “exploring wrecks” cannot be compared with the “they are analyzed”. It distorts the parallelism of the sentence. Here in this option A, the term “exploring” needs to be compared with “analysing” to make the sentence correct. Moreover, the intended meaning of the sentence is also distorted. The intended meaning of the sentence suggests a comparison between recreational divers and government concerns. The wrecks are explored shortly for recreational divers. On the other hand, for government concerns wrecks are analyzed over a time period to detect environmental dangers and protect military secrets. Therefore, option A is incorrect and hence gets eliminated.

Option B
“Unlike wrecks that are explored by recreational divers, in exploring for government concerns, they are analyzed…” - Incorrect. The statement in this answer choice is not structurally parallel. The expression “unlike wrecks" is not parallel to the phrase “in exploring for”. Therefore, the answer choice has a parallelism issue. Moreover, the intended meaning of the sentence is also distorted. The intended meaning of the sentence suggests a comparison between recreational divers and government concerns. The answer choice implies a wrong comparison. The wrecks are explored shortly for recreational divers. On the other hand, for government concerns wrecks are analyzed over a time period to detect environmental dangers and protect military secrets. Therefore, option B is incorrect and hence gets eliminated.

Option C

“Unlike recreational divers exploring wrecks, analyzing wrecks in government concerns is done…” - Incorrect. The answer choice has a punctuation error. There must be a comma after the “government concerns” since the phrase “recreational divers” is placed after “Unlike”. This statement depicts in this answer choice makes the meaning of the sentence illogical. The comma will help to satisfy the meaning of the sentence and will make the sentence logical. Therefore, option C is incorrect since it does not meet the rules of grammar. Hence the answer choice C gets eliminated.

Option E

“For recreational divers, the exploration of wrecks is brief, whereas for government concerns they are analyzed…” - Incorrect. The statement depicted in this answer choice is parallel. However, there lies a pronoun ambiguity in the sentence. The pronoun “they” mentioned in the statement is ambiguous. The pronoun “they” could indicate wrecks, divers, or government concerns. Therefore, option E is incorrect since it does not meet the rules of grammar. Hence the answer choice E gets eliminated.

“Unlike exploring wrecks for recreational divers, in government concerns”- is a GMAT sentence correction question of the GMAT exam. These sorts of questions consist of grammatical errors in the underlined part of the sentence. The candidates need to verify the pronouns and punctuation errors in the sentence. The candidates need to examine whether the answer choices are structurally parallel or not. The candidates must verify the awkwardness and redundancy in the sentence to determine the correct answer by applying logical concepts or ideas. The candidates must check whether the answer choices satisfy the intended meaning of the sentence. The candidates need to choose the correct statement given in the options. The GMAT sentence correction section demands sufficient grammar skills since the candidate has to identify common grammatical errors. GMAT sentence correction is a part of GMAT verbal.

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