He tells Percy the story about the tree and a girl named Thalia. The story was that Thalia, Annabeth and other half bloods where exploring outside of the half blood camp. But then monsters came out of nowhere and started fighting them. They tried to fight the monsters but they weren’t strong enough. So Thalia protected them and risked her own life to save them. But thalia died and Zeus her father grew a tree in her honor, and the tree provided a barrier for the camp to keep them safe. :-)
the answer is c. dialogue because the dialogue is giving a summary of what is going on.
The correct answer is B. Instructs us to greet friends and acquaintances with warmth and respect,
Hope this helps! :)