Which of the following is a sentence fragment?
a. nothing else matters.
b. i told you.
c. maybe after i leave here.
d. don't do that

the answer is emerged from.

orpheus descended to hades, the world of the death to rescue eurydice. no mortal had ever done this before him, he survived because he was protected by the gods. the word "underworld" gives us a clue, he emerged from it like a whale emerges form sea for exemple.