The correct answer is D:They begin their work with surprising or interesting facts known as hooks.
Step-by-step explanation:This is because by beginning a story with an interesting fact the writer grabs the reader's attention and makes him/her want to read more.
A is false because if the book is nonfictional this means that the writer has to include real facts, so s/he can't invent them. For the same reason, C is also wrong, because the characters in a nonfiction book have to be real people who exist or have existed and not invented ones. B is also not relevant in this case because a nonfiction book is based on actual facts and the writer describes the truth, s/he doesn't try to mislead the readers in order to create an effect.