Task: Question Answering
Input (English): Question: Bus 1 and Bus 2 run between cities A and B. Bus 1 leaves city A at the same time Bus 2 leaves city B,
each at a constant rate of speed. Their first meeting is 40 miles from city A. After reaching their
respective destinations and immediately turning around, their second meeting is 30 miles from city B.
What is the distance in miles between city A and city B?

 Option A: 90

 Option B: 120

 Option C: 125

 Option D: 150

 Option E: 180
Output (English): Option A