Task: Question Answering
Input (English): Problem: the dimensions of an open box are 50 cm , 40 cm and 23 cm . its thickness is 2 cm . if 1 cubic cm of metal used in the box weighs 0.5 gms , find the weight of the box . 
Options: ['a ) 8.04 kg', 'b ) 8.14 kg', 'c ) 8.24 kg', 'd ) 9.04 kg', 'e ) none of these']
Output (English): a