Task: Question Answering
Input (English): Problem: a swimmer can swim in still water at 4 km / h . if the speed of the water current is 2 km / h , how many hours will the swimmer take to swim against the current for 7 km ? 
Options: a ) 3.0 , b ) 3.25 , c ) 3.5 , d ) 3.75 , e ) 4.0
Output (English): c