What is the most likely reason author maya angelou included this passage?

to entertain the reader with references to books
to explain her viewpoint on the wonders of reading
to provide actions that show her personality traits
to persuade the reader of the benefits of the classics

So, you have read the passage I'm hoping, lol.
You have answer choices A, B, C, and D.
With this you're going to want to eliminate answers you know aren't correct, like how is she persuading us the readers? She isn't so D is marked out.

You're left with A, B, and C now.
Is she trying to entertain us readers with book references? No, she isn't. So you mark out A.

Now you have B, and C to deal with.
Is she either trying to explain a viewpoint, or provide actions in her personality?

If you're able to Copy & Paste the paragraph onto this I can help you further, cause if it's from her book "I know why the caged birds sing" the answer is might be B. But I wouldn't pick that if you're reading a different book she wrote.