In this task, you need to answer the given multiple-choice question on the general math. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

Example Input: Problem: two numbers are less than a third number by 40 % and 47 % respectively . how much per cent is the second number less than the first ?
Options: a ) 95 % , b ) 88 % , c ) 85 % , d ) 90 % , e ) none of these
Example Output: b

Example Input: Problem: find the value of 80641 x 9999 = m ?
Options: a ) 807518799 , b ) 806436469 , c ) 807538799 , d ) 806329359 , e ) 817431046
Example Output: d

Example Input: Problem: a man saves 30 % of his monthly salary . if an account of dearness of things he is to increase his monthly expenses by 30 % , he is only able to save rs . 300 per month . what is his monthly salary ?
Options: a ) rs . 4000 , b ) rs . 3750 , c ) rs . 5000 , d ) rs . 5500 , e ) rs . 6500
Example Output:
b