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: there are 200 employees in a room . 99 % are managers . how many managers must leave the room to bring down the percentage of managers to 98 % ? 
Options: a ) 150 , b ) 100 , c ) 99 , d ) 50 , e ) 25

Output: b


Input: Consider Input: Problem: a trader bought a car at 5 % discount on its original price . he sold it at a 60 % increase on the price he bought it . what percent of profit did he make on the original price ? 
Options: a ) 17 % , b ) 62 % , c ) 52 % , d ) 19 % , e ) 22 %

Output: c


Input: Consider Input: Problem: the compound interest earned on a sum for the second and the third years are $ 1200 and $ 1260 respectively . what is the rate of interest ? 
Options: a ) 5 % , b ) 8 % , c ) 11 % , d ) 14 % , e ) 18 %


Output: a