If your cell phone rings while you are driving and you do not have a hands-free device, what should you do as a responsible driver?

Letting the call go to voicemail is the most responsible choice for a driver who does not have a hands-free device. When driving, it is crucial to maintain full attention on the road, and answering a phone call can distract you, increasing the risk of an accident. By allowing the call to go to voicemail, you avoid the temptation to engage in conversation while operating the vehicle. Once it is safe to do so, you can check the voicemail and return the call later when you are no longer driving. This approach prioritizes safety, ensuring both your well-being and that of others on the road.

The other options may seem convenient but entail distractions that could lead to dangerous driving situations.