Read the excerpt from Gilgamesh: A New English Version.Gilgamesh backed away. He said, "How dreadful Humbaba's face has become! It is changing into a thousand nightmare faces, more horrible Adful i can bear. i feel haunted. i am too afraid to go on." enkidu answered, "why, dear friend, do you speak like a coward? what you just said is unworthy of you. it grieves my heart. we must not hesitate or retreat." which sentence best states the theme of the excerpt?