Use the article to answer the question.

How does paragraph 4 refine the central idea?

(1 point)
Responses

It gives further detail about how the studies will help humans.
It gives further detail about how the studies will help humans.

It explains important background information that will help readers understand the central idea.
It explains important background information that will help readers understand the central idea.

It restates the central idea with a change in nuance after presenting data.
It restates the central idea with a change in nuance after presenting data.

It provides facts or statistics that help prove the central claim.
It provides facts or statistics that help prove the central claim.

It restates the central idea with a change in nuance after presenting data.