Step 1: Identify the argument
The editorial argues that the premier should not trust her economic advisor’s claim that taxes can be reduced without significantly decreasing government services. The reason given is that the advisor was convicted of embezzlement in his youth.
Step 2: Identify the flaw
Instead of evaluating the advisor’s economic argument, the editorial attacks the advisor’s character (his past conviction). This is a personal attack rather than a logical refutation of the claim itself.
Step 3: Match with the answer choices
(A) Rejecting a proposal on the grounds that a particular implementation of the proposal is likely to fail.
- The argument does not focus on a specific implementation failing but instead attacks the advisor’s credibility. (Incorrect)
(B) Trying to win support for a proposal by playing on people’s fears of what could happen otherwise.
- The argument does not appeal to fear; it attacks the advisor’s trustworthiness. (Incorrect)
(C) Criticizing the source of a claim rather than examining the claim itself.
- The editorial dismisses the advisor’s economic advice solely based on his past rather than evaluating his actual argument. This is a classic ad hominem fallacy. (Correct)
(D) Taking a lack of evidence for a claim as evidence undermining the claim.
- The argument does not rely on a lack of evidence; it dismisses the claim based on the person making it. (Incorrect)
(E) Presupposing what it sets out to establish.
- The argument does not assume its conclusion; it attacks the source of the argument instead. (Incorrect)
Step 4: Conclusion
The best answer is (C) because the argument attacks the advisor’s character rather than addressing the validity of his economic claim.