D After attacking and killing Humbaba with his axe, Gilgamesh assists in slicing him open, removing his intestines, and cutting off his head.
This best supports the conclusion that Gilgamesh is a fierce warrior. In the paraphrase, Gilgamesh kills a ferocious best and cuts him up. The best proves his strength and ferocity. Option A does show that Gilgamesh can be terrifying but not really why. Needing encouraging words to continue on is not as convincing for fierce warrior status as him cutting of his enemy's head. Option C does not state anything about Gilgamesh.
At a minimum, readers know that Fahrenheit 451 takes place sometime after 1990. The story may take place in the later 1900s or well into the 21st century.
