Question: what are the three categories of fallacies?
Answer: Ad Hominem Fallacy. ... 
Strawman Argument. ... 
Appeal to Ignorance (argumentum ad ignorantiam) ... 
False Dilemma/False Dichotomy. ... 
Slippery Slope Fallacy. ... 
Circular Argument (petitio principii) ... 
Hasty Generalization.