Task: Question Answering
Input (English): Problem: a boat running upstream takes 8 hours 48 minutes to cover a certain distance, while it take 4 hours to cover the same distance running downstream. what is the ratio between the speed of the boat and speed of the water current respectively ?
Options: a. 1: 3, b. 3: 8, c. 6: 3, d. 8: 3, e. none
Output (English): d