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

Example Input: Problem: bucket p has thrice the capacity as bucket q . it takes 60 turns for bucket p to fill the empty drum . how many turns it will take for both the buckets p & q , having each turn together to fill the empty drum ? 
Options: a ) 45 , b ) 53 , c ) 54 , d ) 46 , e ) 63
Example Output: a

Example Input: Problem: if two dice are thrown together , the probability of getting prime number on both dice is 
Options: a ) 5 / 9 , b ) 1 / 9 , c ) 2 / 9 , d ) 4 / 9 , e ) 7 / 9
Example Output: c

Example Input: Problem: a starts a business with $ 3500 . after 5 months , b joins with a as his partner . after a year , the profit is divided in the ratio 2 : 3 . b ' s contribution in the capital is 
Options: a ) 7000 , b ) 9000 , c ) 8000 , d ) 9900 , e ) 7900
Example Output:
b