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

Ex Input:
Problem: the marks obtained by polly and sandy are in the ratio 3 : 5 and those obtained by sandy and willy are in the ratio of 5 : 2 . the marks obtained by polly and willy are in the ratio of . . . ? 
Options: a ) 2 : 1 , b ) 3 : 2 , c ) 4 : 3 , d ) 5 : 4 , e ) 6 : 5

Ex Output:
b


Ex Input:
Problem: income and expenditure of a person are in the ratio 5 : 4 . if the income of the person is rs . 15000 , then find his savings ? 
Options: a ) 3600 , b ) 3607 , c ) 3608 , d ) 3602 , e ) 3000

Ex Output:
e


Ex Input:
Problem: there are 250 doctors and nurses at a hospital . if the ratio of doctors to nurses is 2 to 3 , how many nurses are at the hospital ? 
Options: a ) 134 , b ) 138 , c ) 142 , d ) 146 , e ) 150

Ex Output:

e