Task: Question Answering
Input (English): Question: Two men starting from the same place walk at the rate of 5 kmph and 5.5 kmph respectively. What time will they take to be 8.5 km apart, if they walk in the same direction?

 Option A: 12 hrs

 Option B: 14 hrs

 Option C: 15 hrs

 Option D: 17 hrs

 Option E: None
Output (English): Option D