I've read this.
The answer is most likely four. Anne and her best friend Ellen, had to fake sleep when the Nazis INVADED THEIR HOME and Ellen had to hide her necklace. Whenever they heard about there brother-in-law getting killed, it affected them. And Anne had to hide from the Nazis at one point to not get caught.
What are the choices? Your questions says "which of the following"
The Mandela effect is a real essay since I have read many essays and huge body paragraphs with Mandela effect in it....So from background knowledge alone, your answer is True, the Mandela effect was in a real essay :)