Which of the following is an example of expository writing?

A. an advertisement

B. a manual

C. a short story

D. an editorial

I think it's 'D. an editorial'

Expository writing is defined as presenting reasons, explanations, or steps in a process. Logical order should be used with appropriate sequencing of ideas or steps in a process. Effective expository writing should contain a main idea, supporting details, and a conclusion.