A Health Message That Urges Smokers to Cut Down or Stop

A health message that urges smokers to cut down or stop smoking would be most persuasive if it included a

A) statistical summary of the number of smokers who die each year from lung cancer.
B) frightening photo of cancerous lung tissue.
C) brief but vivid case history of a smoker who had successfully kicked the habit.
D) sufficient amount of fear-arousing information.