Task: Question Answering
Input (English): Problem: if the price of gasoline increases by 25 % and a driver intends to spend only 10 % more on gasoline , by how much percent should the driver reduce the quantity of gasoline that he buys ? 
Options: a ) 5 % , b ) 8 % , c ) 10 % , d ) 12 % , e ) 15 %
Output (English): d