Under what circumstance is phone usage while driving permissible?

Using a phone while driving is generally discouraged due to the significant risk it poses to drivers, passengers, and others on the road. The correct situation in which phone usage is permissible is during emergency calls or when the vehicle is safely parked. When making an emergency call, it is crucial to prioritize safety and ensure no distractions that could impair driving. Additionally, if a driver is parked and has the vehicle in neutral, they are not in active control of the vehicle, which significantly decreases the possibility of accidents that might arise from distracted driving.

Other options suggest scenarios where phone usage is either casual or may not align with safe driving practices. For example, calling friends or using a dashboard app while driving may lead to distractions, increasing the likelihood of an accident. The option concerning driving under 30 mph is misleading as speed alone does not mitigate the risks associated with phone usage while driving. Safety laws are designed to create structured approaches to phone usage to minimize distractions, emphasizing the importance of emergency situations where immediate communication is necessary.