When a caterpillar emerges from the egg on a tree branch, it immediately climbs upward until it finds a leaf bud to eat. Biologists thought that this behavior displayed an innate tendency to move in the direction opposite to the pull of gravity. In a recent experiment, a strong light source was placed at the bottom of a tree, and caterpillars, after hatching, climbed downward. Which of the following hypotheses is best supported by the statements given?
A: Newly hatched caterpillars move toward the leaf bud nearest to them.
B: Caterpillars have an innate tendency to move in the direction of gravity.
C: Newly hatched caterpillars move towards the strongest light source in the environment.
D: Newly hatched caterpillars are unable to see in the dark.
Choose A, B, C or D as your solution.
C