Task: Question Answering
Input (English): Question: Two trains of equal are running on parallel lines in the same direction at 47 km/hr and 36 km/hr. The faster train passes the slower train in 36 sec. The length of each train is?

 Option A: 50

 Option B: 88

 Option C: 66

 Option D: 55

 Option E: 22
Output (English): Option D