Final answer:
The passenger area of a vehicle includes all areas within a driver's reach, not just where passengers sit or an unlocked glove compartment. It does not include the trunk.
Step-by-step explanation:
The passenger area of a vehicle includes all the space within the vehicle that is accessible to the driver or passengers while inside the vehicle. This typically encompasses the seats, the area between the seats, the floor, the glove compartment, and any consoles or pockets. It does not include the trunk as it's usually not readily accessible from the passenger compartment. Therefore, the passenger area encompasses much more than just the seats or an unlocked glove compartment. Specifically, the answer to the question is option 2: The area within a driver's reach.