Task: Question Answering
Input (English): Question: A completes a work in 6 days and B complete the same work in 12 days. If both of them work together, then the number of days required to complete the work will be?

 Option A: 4 days

 Option B: 11 days

 Option C: 21 days

 Option D: 22 days

 Option E: 24 days
Output (English): Option A