Why is repetition an important part of an epic's structure?

Why is repetition an important part of an epic's structure? Select 4 options:.  

It allows poets to remember and retell the poem.

It helps the audience absorb the poem.

It creates a rhythmic pattern.

It emphasizes important ideas.

Explanation:

It allows poets to remember and retell the poem.

~It introduces additional themes.

~It helps the audience absorb the poem.

~It distracts from the main idea.

~It creates a rhythmic pattern.

~It emphasizes important ideas

"a" because he is appealing to logic as oppose to appealing to the audience's emotions.