The photo on the left shows an alligator hiding in swamp water. The photo on the right shows an alligator with a mutation for white skin.

What kind of effect is the mutation most likely to have on the alligator?
A. Neutral, because it will have a easier time staying warm
B. Harmful, because it will have a harder time sneaking up on its prey
C. Harmful, because it will have a harder time staying clean
D. Beneficial, because it will have an easier time finding a mate