Task: Question Answering
Input (English): Problem: a money lender finds that due to a fall in the annual rate of interest from 8 % to 7 3 / 4 % his yearly income diminishes by rs . 64.50 , his capital is ? 
Options: a ) 24,602 , b ) 28,888 , c ) 25,800 , d ) 24,628 , e ) 24,6012
Output (English): c