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'.

Ex Input:
Problem: in a 200 meter race a beats b by 35 meters in 7 seconds . a ' s time over the cause is ? 
Options: a ) 47 sec , b ) 40 sec , c ) 45 sec , d ) 33 sec , e ) 35 sec

Ex Output:
d


Ex Input:
Problem: if the product of two numbers is 45276 and their h . c . f . is 22 , find their l . c . m . 
Options: a ) 2574 , b ) 2500 , c ) 2100 , d ) 2058 , e ) none of these

Ex Output:
d


Ex Input:
Problem: the sector of a circle has radius of 21 cm and central angle 45 o . find its perimeter ? 
Options: a ) 91.5 , b ) 92 , c ) 93 , d ) 94 , e ) 58.5

Ex Output:

e