Two stations A and B are 110 km apart on a straight line. One train starts from A at 7 a.m. and travels towards B at 20 kmph. Another train starts from B at 8 a.m. and travels towards A at a speed of 25 kmph. At what time will they meet?

1. A Option A: 9 a.m.
2. B Option B: 10 a.m.
3. C Option C: 10.30 a.m.
4. D Option D: 11 a.m.

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