Task: Question Answering
Input (English): Problem: one fourth of a solution that was 8 % sugar by weight was replaced by a second solution resulting in a solution that was 16 percent sugar by weight. the second solution was what percent sugar by weight ?
Options: a. 74 %, b. 52 %, c. 40 %, d. 18 %, e. 8.5 %
Output (English): c