Final answer:
A typical Public Service Announcement (PSA) is part of a social marketing campaign that aims to educate the public on specific issues for the benefit of society.
Step-by-step explanation:
A typical PSA is part of a social marketing campaign, which aims to inform or educate the public about an issue. Unlike pure advertising which is commercial in nature or public relations that generally seeks to polish the image of a company or individual, social marketing is focused on achieving social good. It encompasses campaigns aimed at changing or maintaining people's behavior for the benefit of individuals and society as a whole. For example, a PSA campaign about the dangers of smoking is designed to alter public behaviors and reduce the incidence of smoking-related health issues. This type of campaigning may use various forms of media to convey the message, including television, radio, print, and online platforms. In contrast, a public relations campaign would be more focused on improving the reputation or image of a particular company or person, and political lobbying is about influencing policymakers directly or through outside lobbying, which involves taking the organization's message to the public to create pressure on lawmakers.