Answer:
How do the details in the passage support the central idea?
Explanation:
A.
The details describe the important role Muslims played in spreading knowledge throughout the world.
Quindlen links the conclusion to the introduction of her essay with the words "like many improbable ideas, when it works, it's a wonder", which is very close to her claim in the overall text, "America is an Improbable idea", it isn't supposed to work but it does despite all of the differences, specifically racial or ethnic, within it.
