What is the primary responsibility of individuals offering alcohol at an event?

The correct answer is D: Comply with the law. When individuals are offering alcohol at an event, their primary responsibility is to ensure that they are following all relevant laws and regulations regarding the service of alcohol. This includes checking proper identification, refusing service to intoxicated individuals, and adhering to all required licensing and permitting. By complying with the law, individuals can help promote responsible alcohol service and contribute to a safe and enjoyable event for all attendees.

Options A, B, and C are incorrect because while checking identification, ensuring it's free, and verifying event registration may be important aspects of alcohol service at an event, they are not the primary responsibility. The primary focus should always be on legal compliance and the promotion of responsible drinking practices.