Task: Question Answering
Input (English): Problem: a trader bought a car at 40 % discount on its original price . he sold it at a 80 % increase on the price he bought it . what percent of profit did he make on the original price ? 
Options: a ) 8 % , b ) 62 % , c ) 2 % , d ) 9 % , e ) 22 %
Output (English): a