Task: Question Answering
Input (English): Question: Speed of boat in water is 12km/hr. and the speed of the stream is 3km/hr. Find the time taken by the boat to go upstream a distance of 45km.

 Option A: 3

 Option B: 4

 Option C: 5 hrs.

 Option D: 6

 Option E: 2
Output (English): Option C