Answer:
The statement that contains a true analogy is C. Coral polyps have tiny tentacles that act like arms to capture their food from the water and protect themselves.
Step-by-step explanation:
An analogy is a comparison of things aimed at showing their similarities; it explains something -tentacles, in this case- in terms of another thing-arms- and shows how they are alike. True analogies like this one must not be confused with similies or metaphors that, although they are similar, are not the same.