Ithought d was right but idk plzzz !

I believe it is B. Here is a paragraph I have found that might help:

Spring tides occur during the full moon and the new moon. During the moon's quarter phases the sun and moon work at right angles, causing the bulges to cancel each other. The result is a smaller difference between high and low tides and is known as a neap tide. Neap tides are especially weak tides.

Hope it helps!