In this task, you need to answer the given multiple-choice question on the physics. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

Input: Consider Input: Problem: convert 0.35 in to a vulgar fraction ?
Options: a ) 18 / 50 , b ) 16 / 50 , c ) 7 / 20 , d ) 19 / 50 , e ) none

Output: c

Input: Consider Input: Problem: a train passes a station platform in 60 sec and a man standing on the platform in 20 sec . if the speed of the train is 54 km / hr . what is the length of the platform ?
Options: a ) 615 m , b ) 420 m , c ) 168 m , d ) 197 m , e ) 691 m

Output: b

Input: Consider Input: Problem: dan ' s car gets 32 miles per gallon . if gas costs $ 4 / gallon , then how many miles can dan ' s car go on $ 54 of gas ?
Options: a ) 236 , b ) 354 , c ) 432 , d ) 512 , e ) 670
Output: c