1. 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:
[A].173 m
[B]. 200 m
[C]. 273 m
[D]. 300 m
✅ The correct answer is option .