Which of the following is not a mass communication exercise?
A. A van moves about in a village and a PA system aboard the van tells the villagers about the risks of acquiring AIDS
B. A sales mans talks to his client over telephone and asks for payment
C. An Internet web site use multimedia presentation techniques to promote RMCGS
D. A radio announcer gives news in brief at 10.00 am on the FM channel
Answer: Option B
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