During the 2010 winter immunization campaign, the Centers for Disease Control and Prevention used the media to encourage all Americans to get vaccinated against the seasonal flu virus. This is an example of a

During the 2010 winter immunization campaign, the Centers for Disease Control and Prevention used the media to encourage all Americans to get vaccinated against the seasonal flu virus. This is an example of a 



A. news release
B. news conference
C. public service announcement
D. cooperative advertising
E. limited-service advertising




Answer: C


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