Task: Question Answering
Input (English): Problem: a man ' s speed with the current is 21 km / hr and the speed of the current is 4.3 km / hr . the man ' s speed against the current is 
Options: a ) 9.2 , b ) 10.3 , c ) 11.5 , d ) 12.4 , e ) 13
Output (English): d