Answer:
A, Hasty Generalization
Explanation:
The idea that once someone votes against something once that then they will always vote against that thing is an extremely quick and incorrect assumption. Along with this, B couldn't be the answer because it isn't a slippery slope. Nor is this false authority or circular reasoning.
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 :)