How do supporting details reinforce the central idea in this passage.

The answer is D. : the supporting details explaining the theory that practice is more important than genius.

Explanation:

I was torn between D and C, but I figured out that the paragraph is not saying people mistakenly think skills cannot be learned (which is answer C). It is saying simply, people mistakenly think you have to be born talented or a genius in order to be good at something. But in reality it takes lots and lots of practice to have a skill your quite good at. So that's why its D. Hope this helped you.

b. vast setting

explanation:

an epic is a poem of heroic proportions; it can't be short or focus on simple daily life event. it cannot be written with a casual tone as it narrates some heroic deeds of legendary figures.    

mark brainliest and have a great day!