Which of the following should be avoided while driving to maintain safety?

The use of a cell phone without hands-free devices is particularly dangerous while driving because it significantly distracts the driver from the road and increases the risk of accidents. When a driver is holding a phone, they are less able to focus on their surroundings, which includes monitoring other vehicles, pedestrians, and traffic signals. This form of distraction can take a driver's attention away from the primary task of driving, leading to slower reaction times and an increased chance of making errors while operating the vehicle.

Listening to music or keeping the windows up, while potentially distracting, generally does not pose the same level of risk as using a cell phone. Listening to music can be managed at a safe volume and does not require physical manipulation or close attention as phone use often does. Driving with one hand may limit control in certain situations, but it is not inherently dangerous if the driver is experienced and aware of their surroundings. However, using a cell phone, especially in a traditional hand-held manner, creates a higher risk factor that is widely recognized in road safety guidelines.