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

Example Input: Problem: in a class of boys and girls vikas ' s rank is 9 th and tanvi ' s rank is 17 th . vikas ' s rank among the boys in that class is 4 th from the top and 18 th from the bottom and tanvi ' s rank among the girls is 8 th from top and 21 st from bottom . in the order of rank , how many girls are there between tanvi and vikas ? 
Options: a ) 29 , b ) 8 , c ) 2 , d ) 4 , e ) 6
Example Output: c

Example Input: Problem: of the 90 house in a development , 50 have a two - car garage , 40 have an in - the - ground swimming pool , and 35 have both a two - car garage and an in - the - ground swimming pool . how many houses in the development have neither a two - car garage nor an in - the - ground swimming pool ? 
Options: a ) 10 , b ) 15 , c ) 20 , d ) 25 , e ) 35
Example Output: e

Example Input: Problem: the ratio of the number of females to males at a party was 1 : 2 but when 3 females and 3 males left , the ratio became 1 : 3 . how many people were at the party originally ? 
Options: a ) 14 , b ) 16 , c ) 18 , d ) 20 , e ) 22
Example Output:
c