Task: Question Answering
Input (English): Problem: 50 men took a dip in a water tank 40 m long and 20 m broad on a religious day . if the average displacement of water by a man is 4 , then the rise in the water level in the tank will be : 
Options: a ) 22 , b ) 25 , c ) 32 , d ) 99 , e ) 88
Output (English): b