A scientist claims that Elysia chlorotica, a species of sea slug, is capable of photosynthesis. Which of the following observations provides the best evidence to support the claim? A. Elysia chlorotica will die if not exposed to light.
B, Elysia chlorotica grows when exposed to light in the absence of other food sources.
C. Elysia chlorotica grows faster when exposed to light than when placed in the dark.
D. Elysia chlorotica grows in the dark when food sources are available.