The correct answer is B. Explains a subject by illustration
Explanation:
In literature, exposition refers to a literary technique or device that consist on introducing events, characters, settings or background information through dialogues, thoughts of the characters or the narrator's voice, this information is key as it provides the reader with the required details to understand the different elements in a story. Similarly, in the case of nonfiction writing exposition is used to illustrate the reader about some subject or situation, mainly by presenting one side or one position about the subject or situation that is being presented and providing multiple details, examples and evidence to provide the reader enough information to understand the subject and support the position presented by the writer. Thus, in nonfiction exposition deals with explaining a subject by illustrating it with multiple details, examples, and evidence.
