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.