Task: Question Answering
Input (English): Question: A man goes 10 km against the current of the stream in 5 hr and goes 5 km along the stream in 1hour. How long will it take to go 5 km in stationary water?

 Option A: 1hr 30min

 Option B: 1hr 12min

 Option C: 2hr

 Option D: 2hr 15min

 Option E: 3hr
Output (English): Option B