Task: Question Answering
Input (English): Problem: a boat having a length 4 m and breadth 3 m is floating on a lake . the boat sinks by 1 cm when a man gets on it . the mass of the man is : 
Options: a ) 12 kg , b ) 120 kg , c ) 72 kg , d ) 96 kg , e ) none of these
Output (English): b