Task: Question Answering
Input (English): Problem: what would be the length of the diagonal of a square plot whose area is equal to the area of a rectangular plot of 45 m length and 40 m width ? 
Options: ['a ) 42.5 m', 'b ) 60 m', 'c ) 4800 m', 'd ) data inadequate', 'e ) none of these']
Output (English): b