C. Yarah starts her speech by asking her audience members a question to help them engage with her topic.
The 4th one is correct! :)
Answer:
By camouflaging and taking cover.
Explanation:
Another shark defense may include hiding from predators by camouflaging themselves against the seafloor or reefs. The flattened of tropical waters is a standout example in terms of cryptic coloration, although its disguise is as much to support its ambush hunting as for lying low.