Researchers Examined the Effectiveness of the "Truth" Anti-Smoking Campaign

Researchers examined the effectiveness of the "truth" anti-smoking campaign. Nationwide surveys of over 16,000 12 to 17-year-olds 8 months before and 15 months after this campaign started revealed

A) no effect.
B) that youth in markets with higher levels of exposure to this campaign reported more negative attitudes towards and beliefs about tobacco industry practices.
C) that youth in markets with higher levels of exposure to this campaign reported more positive attitudes towards and beliefs about tobacco industry practices.
D) that adults in markets with higher levels of exposure to this campaign reported more negative attitudes towards and beliefs about tobacco industry practices.