Task: Question Answering
Input (English): Question: A man can row his boat with the stream at 6 km/h and against the stream in 4 km/h. The man's rate is?

 Option A: 1 kmph

 Option B: 6 kmph

 Option C: 8 kmph

 Option D: 9 kmph

 Option E: 3 kmph
Output (English): Option A