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

Example Input: Problem: 8 men and 2 boys working together can do 4 times as much work as a man and a boy . working capacity of man and boy is in the ratio 
Options: a ) 1 : 2 , b ) 1 : 3 , c ) 2 : 1 , d ) 2 : 3 , e ) none of these
Example Output: a

Example Input: Problem: a number is increased by 11 % and then reduced by 10 % . after these operations , the number : 
Options: a ) does not change , b ) decreases by 1 % , c ) increases by 1 % , d ) increases by 0.1 % , e ) none of these
Example Output: b

Example Input: Problem: if q and d are both integers , q > d , and - 3 q > 19 , then the largest value of d would be ? 
Options: a ) - 5 , b ) - 6 , c ) - 7 , d ) - 8 , e ) - 10
Example Output:
d