If a someone is well adjusted, then that person will have high self-esteem. Crystal has high self-esteem; therefore, she is well adjusted. Is there a thinking or argumentation error in this statement?
A) No, because the antecedent has been asserted.
B) No, because not all of the premises need to be true.
C) Yes, because the consequent has been asserted.
D) Yes, because it is just common sense and may not be true.

Question

Quizplus · Accepted Answer

The argument commits the fallacy of affirming the consequent, which occurs when one assumes that if the consequent (high self-esteem) is true, then the antecedent (being well-adjusted) must also be true. However, there may be other factors that contribute to high self-esteem, and therefore the conclusion that Crystal is well-adjusted cannot be logically inferred from the given premises.

If a Someone Is Well Adjusted, Then That Person Will