When is it permissible to use a cellphone while driving?

Using a cellphone while driving can be dangerous and distracting, which is why there are regulations in place to promote safety on the road. The correct choice emphasizes that it is permissible to use a cellphone when you have pulled over to a safe location. This approach ensures that the driver is not engaged in operating the vehicle while distracted, thus minimizing the risk of accidents.

When pulling over, it's important to choose a safe and legal location, allowing you to focus on your conversation or texting without the immediate pressures of driving. Being stopped provides the opportunity to use your phone responsibly without compromising your attention to the road or surroundings.

The other options lack the necessary precautions to maintain safety while operating a vehicle. Using a cellphone in heavy traffic or while alone can divert attention away from driving. Additionally, stating that it is permissible whenever necessary does not take into account the safety risks involved. Safe driving practices are paramount, and adhering to regulations like this is essential for ensuring the safety of all road users.