Task: Question Answering
Input (English): Problem: the salary of a typist was at first raised by 10 % and then the same was reduced by 5 % . if he presently draws rs . 4180 . what was his original salary ? 
Options: a ) 2277 , b ) 2999 , c ) 4000 , d ) 2651 , e ) 1971
Output (English): c