Please answer the following question: Fact 1: Coral reefs provide food and shelter to many ocean organisms. Fact 2: Some fish, like the clownfish, spend most of their lives in and around coral reefs. Given the two facts above, answer the question "What do clownfish seek shelter in?" with the following options: - coral - deltas - alveoli - burrs - wetland - bushes - keratin - islands
A:
coral