Why do spring and neap tides occur during specific moon phrases?

Seven days after a spring tide, the sun and moon are at right angles to each other. When this happens, the bulge of the ocean caused by the sun partially cancels out the bulge of the ocean caused by the moon. Neap tides occur during the first and third quarter moon, when the moon appears "half full."

Explanation:

option a and d is the correct answer

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