Task: Question Answering
Input (English): Question: A train travelled from station P to Q in 8 hours and came back from station Q to P is 6 hours. What would be the ratio of the speed of the train while traveling from station P to Q to that from station Q to P?

 Option A: 3 : 9

 Option B: 3 : 7

 Option C: 3 : 8

 Option D: 3 : 4

 Option E: 3 : 1
Output (English): Option D