Which of the following actions is considered safe while driving?

Using a GPS device mounted on the dashboard is considered a safe action while driving because it helps provide navigational assistance without requiring visual focus away from the road. When a GPS device is properly mounted and easy to see, drivers can glance at it to receive directions without significantly diverting their attention from driving. This allows for greater situational awareness on the road, which is critical for maintaining safety.

In contrast, adjusting the radio can take a driver's focus away from the road, especially if it requires looking down or manipulating buttons for an extended period. Looking at phone notifications involves taking attention away from the driving task, which greatly increases the risk of distraction. Eating a full meal while driving also diverts attention, as it requires the driver to manage food and utensils, which can weaken their ability to respond quickly to road conditions. Therefore, using a properly mounted GPS is the most responsible choice for maintaining safety while driving.