What’s the answer ???

A. to present the topic to the reader remember, introduction means introduce so the author is introducing the book and what it is about, just as you would introduce a human or yourself!

                                       hope this helps p,s please vote me brainliest!

the author develops a cold, and scared tone. making the reader shudder with fear, and suddenly become cold. i'm guessing that he's writing a scary novel, or maybe about a chilly december night.