Task: Question Answering
Input (English): Problem: a certain college ' s enrollment at the beginning of 1992 was 20 percent greater than it was at the beginning of 1991 , and its enrollment at the beginning of 1993 was 25 percent greater than it was at the beginning of 1992 . the college ' s enrollment at the beginning of 1993 was what percent greater than its enrollment at the beginning of 1991 ? 
Options: a ) 47.5 % , b ) 44 % , c ) 50 % , d ) 35 % , e ) 38 %
Output (English): c