Step 1: Understanding Fallacies of Relevance.
Fallacies of relevance are arguments that are not logically relevant to the conclusion being drawn. These include appeals to emotions, the masses, or authority, and they distract from the real issue.
Step 2: Analyzing the Options.
- 1. Argument Ad Populum: This is an appeal to the masses or the majority, a fallacy of relevance.
- 2. Argument Ad Misericordiam: This is an appeal to pity, another fallacy of relevance.
- 3. Argument Ad Baculum: This is an appeal to force or threat, a fallacy of relevance.
- 4. Argument Ad Petitio Principii: This is a fallacy of begging the question, which is not a fallacy of relevance, but rather a logical fallacy.
Step 3: Conclusion.
The correct answer is 4. Argument Ad Petitio Principii.
Final Answer:
\[
\boxed{\text{The correct answer is 4. Argument Ad Petitio Principii.}}
\]