Task: Question Answering
Input (English): Question: Three bells chime at intervals of 18 min., 24 min. and 32 min. respectively. At a certain time they begin together. What length Z of time will elapse before they chime together again?

 Option A: 2 hr. and 24 min.

 Option B: 4 hr. and 48 min.

 Option C: 1 hr. and 36 min.

 Option D: 5 hr.

 Option E: 2 hr.
Output (English): Option B