Task: Question Answering
Input (English): Question: The Cottage Grove Loop Line travels the distance between the north side and the south side of the city in two hours, at a rate of speed of 100 km/h. How long is a round trip, measured in kilometers?

 Option A: 100 km

 Option B: 150 km

 Option C: 200 km

 Option D: 300 km

 Option E: 400 km
Output (English): Option E