I thnk it might be C, but 100% sure.
The main idea is found by looking at the general idea of the text you are reading, what is it about? What does it mention?
Answer:
"He just melted back against the wall instead."
Explanation:
He is giving up.
Answer: situated on the inside
Prometheus was a character in Greek mythology, who is said to have created a man from clay, defying the gods and stealing fire from them and giving it to people, which enabled progress and civilization.