Q: What's likely to happen if you use a hands-free phone while you're driving?
Explanation
Talking to someone while you're driving can distract you and, unlike when someone is in the car with you, the person on the other end of a mobile phone is unable to see the traffic situations you're dealing with. They won't stop speaking to you even if you're approaching a hazardous situation. You need to concentrate on your driving at all times.