In the context of the specific environment of an organization, identify a difference between the public communications approach and a media advocacy approach. a. The public communications approach relies on voluntary participation by the advertising industry to send out an advocacy group's message, whereas a media advocacy approach involves framing a group's concerns as public issues. b. The public communications approach creates controversies that are likely to receive extensive news coverage, whereas a media advocacy approach relies on discretionary participation by the news media. c. The public communications approach can force organizations to change their practices, whereas a media advocacy approach cannot force organizations to change their practices. d. The public communications approach is much more aggressive than a media advocacy approach.