Step 1: Understanding Fallacies of Presumption.
Fallacies of presumption occur when an argument relies on an unjustified assumption. These fallacies include:
- Complex Question: This fallacy occurs when a question is framed in such a way that it presupposes an answer, thereby leading the respondent to accept a conclusion without evidence.
Other types of fallacies may relate to irrelevant conclusions or improper arguments but do not fall under presumption.
Step 2: Analyzing the Options.
- 1. Irrelevant Conclusion: This is a fallacy of relevance, not a fallacy of presumption.
- 2. Fallacy of Composition: This is another fallacy of relevance, where an assumption is made about a whole based on a part.
- 3. Fallacy of Accent: This fallacy involves ambiguity in language due to stress or emphasis, a fallacy of ambiguity, not presumption.
- 4. Complex Question: This is a fallacy of presumption because it involves assuming something in the question itself.
Step 3: Conclusion.
The correct answer is 4. Complex Question.
Final Answer:
\[
\boxed{\text{The correct answer is 4. Complex Question.}}
\]