John Doubts the Sincerity of Marketers Who Claim That They

John doubts the sincerity of marketers who claim that they will donate to a cause if he purchases their product. He doesn't believe that they will make a difference because he thinks that marketers are only concerned with profits and probably only donate a small portion of their profits to the stated cause. John is best described as belonging to which group of consumers?

A) Skeptic
B) Balancer
C) Attribution-oriented
D) Socially concerned
E) Apathetic