Task: Question Answering
Input (English): Question: A tank is filled in eight hours by three pipes A, B and C. Pipe A is twice as fast as pipe B, and B is twice as fast as C. How much time will pipe B alone take to fill the tank?

 Option A: 22 hours

 Option B: 28 hours

 Option C: 77 hours

 Option D: 75 hours

 Option E: 66 hours
Output (English): Option B