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: if 36 men can do a piece of work in 25 hours , in how many hours will 12 men do it ? 
Options: a ) 22 , b ) 38 , c ) 60 , d ) 88 , e ) 75

Ex Output:
e


Ex Input:
Problem: the radius of a semi circle is 70 cm then its perimeter is ? 
Options: a ) 32.8 , b ) 32.4 , c ) 360 , d ) 32.2 , e ) 32.9

Ex Output:
c


Ex Input:
Problem: there is food for 760 men for 22 days . how many more men should join after two days so that the same food may last for 5 days more ? 
Options: a ) 2280 , b ) 2240 , c ) 2299 , d ) 2288 , e ) 2266

Ex Output:

a