Answer:
Option D
The fact that it is lengthy and in narrative form.
Step-by-step explanation:
An epic poem is a rather lengthy narrative in poetry. They usually detail the adventures or achievements of a hero in distant past.
The key distinguishing feature of epic poems from other poetic genres is that they are quite lengthy and narrative in form, as they tell the stories of the heroes.
Some examples of epic poems include:
- The Epic of Gilgamesh (~2000 BCE): This is a lengthy Mesopotamian poem that shows the feats of the mythological hero-king of Uruk - Gilgamesh
- Paradise Lost (1667): An Epic about the battle between Satan and God.