Question

A particle is moving along x-axis with its position ($ x $) varying with time ($ t $) as:  
$ x = \alpha t^4 + \beta t^2 + \gamma t + \delta. $  
The ratio of its initial velocity to its initial acceleration, respectively, is:

• A. \(2\alpha : \delta\)
• B. \(\gamma : 2\delta\)
• C. \(4\alpha : \beta\)
• D. \(\gamma : 2\beta\)