Answer the following question given this paragraph: 

What's at the bottom of the food chain? A bit of the food energy comes from above, where plankton photosynthesize. Most comes from the coral. Coral are animals that live with tiny zooxanthellae that also photosynthesize. Of course, you know what's at the top of this food chain!.


Q: What are animals that live with tiny zooxanthellae that also photosynthesize?

 Choices:

- worms

- bacteria

- fungi

- coral

A:
coral
