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: Consider Input: Problem: company p had 15 percent more employees in december than it had in january . if company p had 480 employees in december , how many employees did it have in january ?
Options: a ) 391 , b ) 417 , c ) 410 , d ) 423 , e ) 445

Output: b

Input: Consider Input: Problem: a number exceeds 20 % of itself by 40 . the number is ?
Options: a ) 50 , b ) 60 , c ) 80 , d ) 320 , e ) none

Output: a

Input: Consider Input: Problem: at what rate percent per annum will the simple interest on a sum of money be 1 / 5 of the amount in 10 years ?
Options: a ) 2 % , b ) 7 % , c ) 9 % , d ) 3 % , e ) 1 %
Output: a