At what times are you allowed to use a cell phone while driving?

Using a cell phone while driving is regulated to promote safety on the roads. The correct option highlights that the use of a hands-free device is permitted because it allows drivers to maintain better control of their vehicle while still being able to communicate. Hands-free devices free the driver’s hands from holding the phone, allowing them to keep both hands on the wheel and focus on the road. This reduces the distraction that comes from physically handling a device.

The other options do not align with the laws designed to keep drivers and others on the road safe. For instance, using a cell phone while stopped at a red light can still encourage drivers to engage with their phones instead of remaining alert to changes in traffic. Similarly, even in heavy traffic, distractions from a cell phone can lead to accidents, and using it anytime for emergencies might lead drivers to misinterpret situations as emergencies and make dangerous choices. Therefore, using a hands-free device strikes a balance between necessary communication and maintaining road safety.