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

Ex Input:
Problem: how many even integers from 1 to 100 ( both inclusive ) have even number of factors ? 
Options: a ) 13 , b ) 14 , c ) 5 , d ) 6 , e ) 7

Ex Output:
c


Ex Input:
Problem: in what ratio must tea at rs . 62 per kg be mixed with tea at rs . 72 per kg so that the mixture must be worth rs . 64.50 per kg ? 
Options: a ) 3 : 1 , b ) 2 : 1 , c ) 5 : 2 , d ) 3 : 2 , e ) 3 : 4

Ex Output:
a


Ex Input:
Problem: at a garage sale , all of the items were sold at different prices . if the price of a radio sold at the garage sale was both the 17 th highest price and the 24 th lowest price among the prices of the items sold , how many items were sold at the garage sale ? 
Options: a ) 38 , b ) 39 , c ) 40 , d ) 41 , e ) 42

Ex Output:

c