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: the cost price of an article is 70 % of the marked price . calculate the gain percent after allowing a discount of 10 % . 
Options: a ) 13.6 % , b ) 28.6 % , c ) 35.6 % , d ) 42.3 % , e ) none

Output: b


Input: Consider Input: Problem: 3 candidates in an election and received 1136 , 7636 and 11628 votes respectively . what % of the total votes did the winningcandidate got in that election ? 
Options: a ) 45 % , b ) 56 % , c ) 57 % , d ) 70 % , e ) 72 %

Output: c


Input: Consider Input: Problem: a customer went to a shop and paid a total of $ 40 , out of which $ 1.28 was for sales tax on taxable purchases . if the tax rate was 8 % , then what was the cost of the tax free items ? 
Options: a ) $ 19.54 , b ) $ 2076 , c ) $ 21.36 , d ) $ 22.72 , e ) $ 23.58


Output: d