Definition: In this task, you need to answer the given multiple-choice question on the gain. Gain is the value by which to multiply the input. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.
Input: Problem: how much 60 % of 50 is greater than 45 % of 30 ? 
Options: a ) 18 , b ) 91 , c ) 16.5 , d ) 17 , e ) 12
Output:
c