Two ships are sailing in the sea on the two sides of a lighthouse. The angle of elevation of the top of the lighthouse is observed from the ships are 30° and 45° respectively. If the lighthouse is 100 m high, the distance between the two ships is:

1. A Option A: 173 m
2. B Option B: 200 m
3. C Option C: 273 m
4. D Option D: 300 m

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