Wheres the rest of the question?
have a great day~~
Answer:
Miss Caroline was taught how to teach kids a certain way and doesn't know what to do when a child knows something she's supposed to teach..hope this helps....currently reading this book in school as well goodluck.
Explanation:
3) add information that further explains or defines the main idea.
Extension mean to add on to, so 3) is the correct answer.