The correct answer is C. Bandwagon
Explanation:
A fallacy occurs when there are issues on the process of reasoning or construction an argument and because of this the argument is invalid or provides invalid support. Considering fallacies can occur in different ways there are many types of fallacies including false dilemma, circular argument, slippery slope, straw man, appeal to ignorance, bandwagon, etc, each one addressing a different mistake in reasoning.
In the case of Bandwagon, also called appeal to the masses this fallacy occurs when it is assumed some idea is valid and true just because many people agree with it, which means the speaker or writer does not provide a real support or evidence for the statement but just assumes it is true because many people approve it. This occurs in the sentence "Everyone knows that this weekend's dance will be fun" because the speaker supposes the dance will be fun just because many people believe this, which is exactly what occurs in Bandwagon fallacy. Thus the type of logical fallacy in the sentence presented is Bandwagon.
