Task: Question Answering
Input (English): Question: Working alone, machine X can manufacture 1,000 nails in 12 hours. Working together, machines X and Y can manufacture 1,000 nails in 6 hours. How many hours does it take machine Y to manufacture 1,000 nails working alone?

 Option A: 3 9/17

 Option B: 5 1/3

 Option C: 7

 Option D: 7 1/5

 Option E: 12
Output (English): Option E