Which best defines an intercalary chapter? A. A chapter that is written as a flashback to provide exposition B. A chapter that expresses the private thoughts of a character C. A chapter that breaks the flow of a narrative to offer commentary D. A chapter that is told by a third-person omniscient narrator

I think I will go for B

C. A chapter that breaks the flow of a narrative to offer commentary.

Explanation:

An intercalary chapter is one that does not continue the plot of the story. This type of chapter breaks the flow of the narrative in order to offer commentary. Most of the time, such commentary is presented in order to offer more information about the context of the story. It also allows us to better understand the experiences and perspectives of the characters.