Task: Question Answering
Input (English): Question: P is able to do a piece of work in 10 days and Q can do the same work in 12 days. If they can work together for 5 days, what is the fraction of work left?

 Option A: 7/12

 Option B: 5/12

 Option C: 1/12

 Option D: 3/12

 Option E: 1/2
Output (English): Option C