Answer:
Your username looks like you headbutted the keyboard and unfortunately, I doubt anyone is going to write three paragraphs for you.
Explanation:
Start here:
https://science.howstuffworks.com/environmental/earth/oceanography/rogue-wave4.htm
I've checked all the options and I think that the right answer looks like this: Mollusks have highly developed olfactory receptors.
Answer:
your answer is antibodies reacting to foreign antigens.