Task: Question Answering
Input (English): Question: A man takes 3 hours 45 minutes to row a boat 30 km downstream of a river and 2 hours 30 minutes to cover a distance of 5 km upstream. Find the speed of the current.

 Option A: 1 km/hr

 Option B: 2 km/hr

 Option C: 3 km/hr

 Option D: 4 km/hr

 Option E: None of these
Output (English): Option C