Task: Question Answering
Input (English): Problem: a is two years older than b who is twice as old as c. if the total of the ages of a, b and c be 17, the how old is b ? a. 7 b. 8 c. 9 d. 10 explanation :
Options: a. 6, b. 7, c. 9, d. 10, e. 11
Output (English): a