You are presented with the question "What do exoskeletons secreted by corals do?" and the following answer choices: 
- Give homes to humans
 - Give homes to penguins
 - competing for resources
 - Give homes to fish
 - reproduce
 - Give homes to birds
 - preventing heat transfer
 - protect them

Now knowing that many corals secrete an exoskeleton that builds up to become a coral reef and to fisherfolk, coral reefs are homes to fish that are waiting to be caught, choose the best answer.


 

    Give homes to fish     