Bertha argues that vitamins and special food supplements are a waste of money. But only yesterday Bertha was seen in a health food store, and her friends report that she takes vitamins every day. Obviously Bertha's argument is crazy.
A) Tu quoque (you, too).
B) No fallacy.
C) Argument against the person, abusive.
D) Appeal to unqualified authority.
E) Weak analogy.

Question

Quizplus · Accepted Answer

Bertha's argument is invalidated by the fact that she engages in the behavior she claims to be a waste of money. The tu quoque fallacy (you, too) occurs when someone is accused of something and defends themselves by pointing out that their accuser is guilty of the same thing. In this case, Bertha's actions are contradictory to her argument.

Bertha Argues That Vitamins and Special Food Supplements Are a Waste