Question:  Why cheddar cheese should inhibit tooth decay is unclear, but Dr. Bowen, who reports this effect in her study, speculates that the food might interfere with the acid that decays teeth or with the bacterium that produces the acid.

1. Why cheddar cheese should inhibit tooth decay is unclear
2. Cheddar cheese and how it inhibits tooth decay is not clear
3. How cheddar cheese should inhibit tooth decay is not clear
4. That cheddar cheese inhibits tooth decay and how is unclear
5. Why there is an inhibition of tooth decay by cheddar cheese is unclear

“Why cheddar cheese should inhibit tooth decay is unclear, but Dr. Bowen, who reports this effect” - is a GMAT sentence correction question. These types of questions contain grammatical errors in the underlined sentence, and we have to choose the correct statement from the options. GMAT sentence correction is part of GMAT verbal.

Answer: A
Explanation:

The following recommendations could be utilised as a means of validating the suggested alteration to the phrase:

• Parallelism
• Considering two distinct facts
• Modifiers

This is how the sentence is put together:

It is unclear why cheddar cheese should prevent tooth decay, but Dr. Bowen, reports this result in her study. The hypothesis is that the meal may interfere with the bacterium that causes the acid that causes tooth decay or the acid itself.

Option A is incorrect:

A is the correct response. Because it puts emphasis on the obscurity of the 'reason' why cheddar cheese should inhibit tooth decay. This is exactly in keeping with the passage's purpose. Therefore, the appropriate response is (A).

Option B is incorrect:

This choice is incorrect. (B) implies that both the definition of "Cheddar cheese" and the mechanism by which it prevents tooth decay are ambiguous. The inference that "cheddar cheese" is ambiguous, which makes no sense at all, was not what the sentence was trying to convey. Therefore, B is eliminated.

Choice C is incorrect:

This is an incorrect option. This places more emphasis on the "process" of inhibition than on the "why." thus, remove (C)

Choice D is incorrect:

D is an incorrect choice. (D) suggests that two things are ambiguous:

The first is whether or not "cheddar cheese" prevents tooth decay, and the second is how cheddar cheese prevents tooth decay.

Any one of these two implications is not the subject of the paragraph. thus, remove (D)

Choice E is incorrect:

This is the incorrect choice. (E) suggests that "cheddar cheese" is a result of tooth decay. It is clear that this is absurd. Therefore, eliminate (E).

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