Please help!! will mark brainliest
Which of the following statements provides the best evidence of straightforward predation, rather than a symbiotic relationship such as parasitism?

A. A type of fly has larvae that burrow into and grow within a host snail while they consume it.

B. Crown of thorns starfish roam the reef consuming coral polyps.

C. Nematode worms live in the intestines of marine fish.

D. Zooxanthellae live within corals and provide
photosynthetic products to the corals.