Why do fisherfolks catch more fish during the new moon than during the full moon?

A. Fishes are more active during the new moon because of the salt content of water is just right.

B. Fishes look for mates during the new moon.

C. Fishes go near the surface during the new moon because the water is warmer.

D. Fishes are attracted to the light from the fishing boat which fishermen make use during the new moon.