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: double of quarter of 2 percent written as a decimal is : 
Options: a ) 0.01 , b ) 0.0005 , c ) 0.25 , d ) 0.005 , e ) none of these
Output:
a