Task: Question Answering
Input (English): Problem: a man can row 5 kmph in still water . when the river is running at 2.3 kmph , it takes him 1 hour to row to a place and black . what is the total distance traveled by the man ? 
Options: a ) 2.91 , b ) 3.48 , c ) 2.98 , d ) 3.78 , e ) 4.21
Output (English): d