Task: Question Answering
Input (English): Question: A man can do a piece of work in 5days, but with the help of his son, he can finish it in 2days. In what time can the son do it alone?

 Option A: 3 1/3

 Option B: 5 1/2

 Option C: 7 1/2

 Option D: 6

 Option E: 9 1/2
Output (English): Option A