OK so Charybdis is a Whirlpool it was originally considered a sea monster so the best option to go with will be option D.
To establish an effective argument, it's important to eliminate emotions.
Pointing fingers, creating issues, and demonstrating power will likely take credit away from your argument, as these techniques are all largely intimidation tactics. On the other hand, by eliminating emotions, you can focus on the facts of the argument, which will establish more credibility.
Answer:
a. to teach how to cook different foods