Final answer:
Beowulf exhibits an epic plot structure through its considerable length filled with mythical elements and the inclusion of heroic quests featuring a larger-than-life protagonist.
Step-by-step explanation:
The view that Beowulf employs an epic plot structure is justified by several elements characteristic of epic poetry. An identifiable feature of epic plots within Beowulf is its extensive length and incorporation of mythical elements, such as dragons and monsters, which lends the narrative a grand and timeless quality. Another epic characteristic is the presence of heroic quests, where the protagonist, Beowulf himself, engages in larger-than-life deeds, such as battling the monster Grendel and Grendel's mother, and eventually fighting a lethal dragon, showcasing his extraordinary abilities and courage consistent with that of an epic hero.