Task: Question Answering
Input (English): Problem: a man, a woman and a boy can together complete a piece of work in 3 days. if a man alone can do it in 6 days and a women alone in 18 days, how long will a boy take to complete the work ?
Options: a. 6 days, b. 8 days, c. 9 days, d. 7 days, e. 5 days
Output (English): c