Which of the following is a legal reason to use a mobile device while driving?

Using a mobile device while driving is generally discouraged due to the potential distractions it can cause. However, making a call to report an emergency is a legally accepted reason to use a mobile device while driving. In such situations, the need to communicate vital information can outweigh the risks of distraction. Emergency situations can involve anything from reporting an accident, a medical emergency, or dangerous behavior on the road. The law recognizes these instances as critical and allows drivers to use their mobile devices to seek help or inform authorities.

In contrast, sending text messages to friends or checking social media updates does not qualify as emergency situations and can lead to significant distractions, which is why such activities are prohibited while driving. Similarly, using navigation apps without a hands-free setup also presents a risk by requiring the driver to take their attention away from the road, which can compromise safety.