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

Example Input: Problem: q - 1 ) of the 84 parents who attended a meeting at a school , 25 volunteered to supervise children during the school picnic and 11 volunteered both to supervise children during the picnic and to bring refreshments to the picnic . if the number of parents who volunteered to bring refreshments was 1.5 times the number of parents who neither volunteered to supervise children during the picnic nor volunteered to bring refreshments , how many of the parents volunteered to bring refreshments ?
Options: a ) 25 , b ) 36 , c ) 38 , d ) 45 , e ) 42
Example Output: e

Example Input: Problem: what is the greatest positive integer e such that 3 ^ e is a factor of 9 ^ 10 ?
Options: a ) e = 5 , b ) e = 9 , c ) e = 10 , d ) e = 20 , e ) 30
Example Output: d

Example Input: Problem: in a group of 100 people , 55 have visited iceland and 43 have visited norway . if 61 people have visited both iceland and norway , how many people have visited neither country ?
Options: a ) 60 , b ) 61 , c ) 62 , d ) 63 , e ) 64
Example Output:
d