What is considered a rescue vehicle?

A rescue vehicle is specifically designated to transport injured individuals and assist in emergency situations. The key characteristic of a rescue vehicle is its modifications and equipment that are tailored for providing medical care and safely transporting patients to medical facilities. This may include features like stretchers, medical supplies, and advanced communication systems that enhance the ability of emergency personnel to respond effectively.

While sirens are a common feature of emergency service vehicles, not all vehicles with sirens are classified as rescue vehicles. Similarly, an emergency service vehicle encompasses a broad category that can include fire trucks, police cars, and ambulances, but does not specifically define the vehicle's function in terms of patient transport. A police patrol car, while part of emergency services, doesn't primarily serve the role of aiding the injured as a rescue vehicle does.

Thus, the focus of the correct answer is on the specific modifications and purpose of the vehicle to ensure it's dedicated to rescue operations and the transport of injured individuals.