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

Ex Input:
Problem: find the fraction which has the same ratio to 2 / 6 that 3 / 4 has to 1 / 2 
Options: a ) 1 / 2 , b ) 2 / 5 , c ) 6 / 8 , d ) 9 / 4 , e ) 7 / 5

Ex Output:
a


Ex Input:
Problem: what is the number of integers from 1 to 1000 ( inclusive ) that are divisible by neither 20 nor by 35 ? 
Options: a ) 567 , b ) 850 , c ) 560 , d ) 923 , e ) 240

Ex Output:
d


Ex Input:
Problem: the ratio of buses to cars on river road is 1 to 13 . if there are 60 fewer buses than cars on river road , how many cars are on river road ? 
Options: a ) 65 , b ) 60 , c ) 55 , d ) 40 , e ) 45

Ex Output:

a