Task: Question Answering
Input (English): Question: A boatman can row 3 km against the stream in 36 minutes and return in 18 minutes. Find the rate of current ?

 Option A: 7/2 kmph

 Option B: 2.5 kmph

 Option C: 5/2 kmph

 Option D: 1/2 kmph

 Option E: 2/2 kmph
Output (English): Option B