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

Ex 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

Ex Output:
e


Ex Input:
Problem: a certain manufacturer of cake , muffin , and bread mixes has 100 buyers , of whom 50 purchases cake mix , 40 purchase muffin mix , and 17 purchase both cake mix and muffin mix . if a buyer is to be selected at random from the 100 buyers , what is the probability that the buyer selected will be one who purchases neither cake mix nor muffin mix ? 
Options: a ) 1 / 10 , b ) 3 / 10 , c ) 1 / 2 , d ) 27 / 100 , e ) 9 / 100

Ex Output:
d


Ex Input:
Problem: if w is the set of all the integers between 49 and 76 , inclusive , that are either multiples of 3 or multiples of 2 or multiples of both , then w contains how many numbers ? 
Options: a ) 19 , b ) 91 , c ) 41 , d ) 18 , e ) 14

Ex Output:

a