According to the Textbook, the Effects of Standard Mass-Communication Efforts

According to the textbook, the effects of standard mass-communication efforts on attitudes and behaviors are not always as strong as you might imagine.This proposition is bolstered by all of the following research findings EXCEPT

A) research showing that the correlation between the ad budget of a product and its market share is weak.
B) research showing no significant correlation between the amount a candidate spends on an election and success in the election.
C) research showing that the D.A.R.E.program did not decrease drug use.
D) research showing that adolescents cannot be taught strategies for turning away requests for unprotected sex.