In this task, you need to provide the correct option for a given problem from the provided options.

Ex Input:
Problem: a starts business with rs . 3500 and after 6 months , b joins with a as his partner . after a year , the profit is divided in the ratio 2 : 3 . what is b â € ™ s contribution in the capital ? 
Options: a ) 24887 , b ) 20778 , c ) 23788 , d ) 10500 , e ) 2811

Ex Output:
d


Ex Input:
Problem: what is the units digit of 31 ! + 50 ! + 2 ! + 3 ! ? 
Options: a ) 0 , b ) 2 , c ) 4 , d ) 6 , e ) 8

Ex Output:
e


Ex Input:
Problem: the ratio of the number of females to males at a party was 1 : 2 but when 6 females and 6 males left , the ratio became 1 : 3 . how many people were at the party originally ? 
Options: a ) 24 , b ) 28 , c ) 32 , d ) 36 , e ) 40

Ex Output:

d