When is it acceptable to use a cell phone while driving?

Using a cell phone while driving is a significant safety concern, and the law is designed to minimize distractions for drivers. The only legal situation among the provided choices is when using a hands-free device. This allows the driver to communicate without physically handling the phone, thus keeping both hands on the wheel and maintaining focus on the road.

Hands-free devices can include Bluetooth headsets or built-in car systems that allow for voice-activated commands. This method reduces the risk of accidents associated with distracted driving, as it limits the driver's need to look at or manipulate the phone directly.

In contrast, using a cell phone while stopped at a traffic light is still illegal in many jurisdictions because it can distract the driver just as much as when the vehicle is in motion. Using a cell phone at any time while driving is prohibited due to the distraction it creates. Furthermore, the location—such as driving in a rural area—does not change the rules regarding the use of cell phones behind the wheel. The focus remains on maintaining safety on the road regardless of the environment.