Which alerts are displayed on lottery machines and dynamic message signs?

The correct response is that Amber and Silver alerts are the types of alerts that are displayed on lottery machines and dynamic message signs. Amber alerts are specifically designed to inform the public about abducted children, while Silver alerts are issued for missing persons who are elderly or have cognitive disabilities, such as Alzheimer's.

Both types of alerts are critical in disseminating important and time-sensitive information to the public, particularly when immediate assistance is needed to locate missing individuals. These alerts utilize public channels like lottery machines and dynamic message signs to reach as wide an audience as possible, increasing the chances of a timely resolution.

The focus on specific alerts such as Amber and Silver demonstrates the importance of quick public awareness and community involvement in ensuring safety and providing real-time information about missing persons.