Task: Question Answering
Input (English): Problem: a garrison of 2000 men has provisions for 62 days . at the end of 15 days , a reinforcement arrives , and it is now found that the provisions will last only for 20 days more . what is the reinforcement ? 
Options: a ) 1977 , b ) 1893 , c ) 2700 , d ) 1900 , e ) 1278
Output (English): c