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

• A. Wear a helmet
• B. Participate in the marathon
• C. Buy a new car
• D. Join the book club

Answer: (A)

A public service announcement (PSA) is intended to raise awareness and promote positive changes in behavior for the benefit of the public. The choice that states "Wear a helmet" aligns with the goals of a PSA because it advocates for safety and encourages individuals to adopt a protective measure that can prevent serious injuries, particularly in activities such as biking or skating. This type of message is designed to inform the public about the importance of safety practices and their overall welfare.

In contrast, the other options primarily serve to promote activities or products without an inherent focus on public interest or safety. "Participate in the marathon" could encourage physical activity, but it does not convey a crucial safety message. "Buy a new car" is a commercial message aimed at promoting consumerism, while "Join the book club" encourages social engagement but lacks the broad public health message required to be classified as a PSA. Thus, "Wear a helmet" is the strongest example of a public service announcement, targeting the general public to enhance safety awareness.