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

Input: Consider Input: Problem: a man invests some money partly in 12 % stock at 108 and partly in 10 % stock at 60 . to obtain equal dividends from both , he must invest the money in the ratio :
Options: a ) 3 : 4 , b ) 3 : 2 , c ) 4 : 5 , d ) 16 : 15 , e ) none

Output: b

Input: Consider Input: Problem: how many of the positive factors of 36 , 84 and how many common factors are there in numbers ?
Options: a ) 2 , b ) 4 , c ) 3 , d ) 5 , e ) 6

Output: e

Input: Consider Input: Problem: income and expenditure of a person are in the ratio 10 : 7 . if the income of the person is rs . 10000 , then find his savings ?
Options: a ) 3005 , b ) 3098 , c ) 3300 , d ) 3010 , e ) 3000
Output: e