Task: Question Answering
Input (English): Question: Two trains of equal length are running on parallel lines in the same directions at 46km/hr. and 36km/hr. The faster trains pass the slower train in 18 seconds. The length of each train is:

 Option A: 25m

 Option B: 50m

 Option C: 72m

 Option D: 80m

 Option E: None of these
Output (English): Option A