Task: Question Answering
Input (English): The _ad nauseam_ fallacy is
(A)arguing that something should be done because that's the way it's been done in the past. (B)arguing that an act should be carried out because it will not have any significant consequences, when there is no evidence of the effects (C)reasoning that a conclusion is true because it's been claimed so often (D)reasoning that a claim is true because so many people believe it is true
Output (English): C