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

Ex Input:
Problem: the ratio of the number of females to males at a party was 1 : 2 but when 7 females and 7 males left , the ratio became 1 : 3 . how many people were at the party originally ? 
Options: a ) 28 , b ) 32 , c ) 36 , d ) 42 , e ) 50

Ex Output:
d


Ex Input:
Problem: what is the square root of 261,121 ? 
Options: a ) 476 , b ) 489 , c ) 497 , d ) 511 , e ) 524

Ex Output:
d


Ex Input:
Problem: if $ 910 are divided between worker a and worker b in the ratio 5 : 9 , what is the share that worker b will get ? 
Options: a ) 62.27 % , b ) 63.28 % , c ) 64.29 % , d ) 65.31 % , e ) 66.32 %

Ex Output:

c