Which of the following is an example of a public service announcement?

A public service announcement (PSA) is designed to inform and educate the public about important issues, often aimed at promoting health and safety. The advertisement promoting seatbelt use exemplifies this concept, as it directly targets the public with a clear message aimed at influencing behavior for enhanced safety.

This type of communication is typically distributed through various media channels, including television, to reach a wide audience effectively. Public service announcements often highlight critical public health concerns, encourage preventative actions, and may address societal issues, making them a key tool in public health promotion.

While the other options involve health-related information, they do not fit the criteria for a public service announcement as closely. For instance, an educational pamphlet on nutrition provides valuable information but may not have the same broad reach or urgent call to action inherent in a PSA. A documentary on health disparities serves to inform and educate as well, yet it typically has a more exploratory or narrative focus rather than a direct call for public action. An invitation to a health symposium invites participation in a specific event but does not communicate a broad public health message designed to influence general behavior.