Task: Question Answering
Input (English): Question: Two pipes A and B can fill a tank in 8 hours and 16 hours respectively. If both pipes are opened simultaneously, how much time will be taken to fill the tank?

 Option A: 5 hours 20 min

 Option B: 5 hours 49 min

 Option C: 3 hours 50 min

 Option D: 3 hours 22 min

 Option E: 3 hours 42 min
Output (English): Option A