Define an "epic."

An epic is defined as a lengthy narrative poem that recounts the heroic deeds and significant events related to a particular culture or civilization. This definition encompasses several key features of epics, including their considerable length, the grand scale of themes, and their focus on heroic figures who often embody the values and ideals of the culture they represent. For instance, works like "The Iliad" and "The Odyssey" by Homer serve as quintessential examples of epics that illustrate not only the valor and struggles of their protagonists but also offer insights into the societal norms and beliefs of ancient Greek culture. The grandeur and narrative depth in these poems allow them to illuminate the collective identity and traditions of a people, reinforcing why this choice accurately captures the essence of an epic. The other options describe different narrative forms: a short story, a personal narrative, and a type of play, each of which varies significantly in structure and thematic focus from the characteristics that define an epic.