Task: Question Answering
Input (English): Problem: a statue is being carved by a sculptor . the original piece of marble weighed 180 kg . in the first week 28 percent is cut away . in the second week 18 percent of the remainder is cut away . in the third week the statue is completed when 20 percent of the remainder is cut away . what is the weight of the final statue ? 
Options: a ) 105 kg , b ) 85 kg , c ) 108 kg , d ) 125 kg , e ) 117 kg
Output (English): b