Task: Question Answering
Input (English): Problem: the size of a flat - screen television is given as the length of the screen ’ s diagonal . how many square inches greater is the screen of a square 21 - inch flat - screen television than a square 19 - inch flat - screen television ? 
Options: a ) 42 , b ) 40 , c ) 38 , d ) 36 , e ) 48
Output (English): b