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

Input: Consider Input: Problem: in assembling a bluetooth device , a factory uses one of two kinds of modules . one module costs $ 8 and the other one , that is cheaper , costs $ 3 . the factory holds a $ 100 worth stock of 25 modules . how many of the modules in the stock are of the cheaper kind ? 
Options: a ) 21 , b ) 20 , c ) 22 , d ) 23 , e ) 24

Output: b


Input: Consider Input: Problem: in the standard formulation of a flavored drink the ratio by volume of flavoring to corn syrup to water is 1 : 12 : 30 . in the ` ` sport ' ' formulation , the ratio of flavoring to corn syrup is three times as great as in the standard formulation , and the ratio of flavoring to water is half that of the standard formulation . if a large bottle of the ` ` sport ' ' formulation contains 3 ounces of corn syrup , how many ounces of water does it contain ? 
Options: ['a ) 45', 'b ) 50', 'c ) 55', 'd ) 60', 'e ) 63']

Output: a


Input: Consider Input: Problem: what is the prime factors ’ number of 48 ? 
Options: a ) 2 , b ) 3 , c ) 4 , d ) 5 , e ) 6


Output: d