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: a survey was sent to 95 customers , 7 of whom responded . then the survey was redesigned and sent to another 63 customers , 9 of whom responded . by approximately what percent did the response rate increase from the original survey to the redesigned survey ?
Options: a ) 2 % , b ) 5 % , c ) 7 % , d ) 28 % , e ) 63 %

Output: c

Input: Consider Input: Problem: 150 is what percent of 60 ?
Options: a ) 250 % , b ) 20 % , c ) 50 % , d ) 200 % , e ) 500 %

Output: a

Input: Consider Input: Problem: 4 weavers can weave 4 mats in 4 days . at the same rate , how many mats would be woven by 12 weavers in 12 days ?
Options: a ) 12 , b ) 18 , c ) 24 , d ) 30 , e ) 36
Output: e