The correct answer to this question is C, Appeal to authority. Fallacies are arguments that are based on the logic that is unsound. An appeal to authority is one of those fallacies. One uses to appeal to authority when they claim that something is true based off when a person of authority says it.
A person of authority could be a government official, a parent, family member, or in this case, a teacher. The most common example of an appeal to authority we see is in commercials featuring celebrities. For instance, if a hair shampoo commercial features Beyonce, they will say the shampoo is the best to use on hair because Beyonce uses it.