In which situation is 9-1-1 used for emergencies?

The use of 9-1-1 is specifically designated for emergencies that require immediate assistance from emergency services such as police, fire, and medical responders. This system is established to facilitate quick access to help during life-threatening situations, crimes in progress, fires, and other urgent incidents that pose a risk to life or property. When someone calls 9-1-1, they are connected to trained dispatchers who can quickly send the appropriate services to the scene.

In contrast, other situations such as reporting maintenance issues, making regional inquiries, or suggesting improvements are not emergencies that necessitate immediate action from emergency responders. These scenarios typically require routine communication, administration, or reporting, which should be directed to appropriate non-emergency numbers or channels. Therefore, the option that correctly identifies the use of 9-1-1 is the one that involves requesting fire and police services, as it underscores the system's purpose of providing timely aid in critical situations.