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'.

Example Input: Problem: a car travels at a speed of 12 miles per hour . how far will it travel in 5 hours ?
Options: a ) 50 miles , b ) 60 miles , c ) 72 miles , d ) 22 miles , e ) 62 miles
Example Output: b

Example Input: Problem: p , q and r can do a work in 6 , 9 and 12 days respectively . they completed the work and got rs . 195 . what is the share of p ?
Options: a ) 80 , b ) 70 , c ) 85 , d ) 90 , e ) 95
Example Output: d

Example Input: Problem: in what time will a railway train 30 m long moving at the rate of 36 kmph pass a telegraph post on its way ?
Options: a ) 5 sec , b ) 4 sec , c ) 3 sec , d ) 6 sec , e ) 1 sec
Example Output:
c