What is the purpose of expository writing

、The purpose of expository writing is to tell a story or narrate an event or series of events
B、The purpose of expository writing is to explain and analyze information by presenting an idea, relevant evidence, and appropriate discussion
C、The purpose of expository writing is to prove the validity of an idea, or point of view, by presenting sound reasoning, discussion, and argument to thoroughly convince the reader
D、The purpose of expository writing is to re-create, invent, or visually present a person, place, event, or action so that the reader can picture that which is being described