Which of the following actions is considered unethical when driving?

Talking on a handheld device while driving is considered unethical because it significantly distracts the driver from their primary responsibility of focusing on the road. Engaging in a conversation on a handheld device requires visual and cognitive attention that diverts focus from driving, increasing the risk of accidents and endangering the driver, passengers, and other road users.

In contrast, using a hands-free device, listening to music, or using GPS navigation can be done with minimal distraction, allowing drivers to maintain more concentration on their driving responsibilities. It's important to prioritize safety and attentiveness while operating a vehicle, which is why talking on a handheld device is viewed as an unethical practice in the context of driving.