C - Six to Eight hours.
Step-by-step explanation:
Driving behind the wheel means that a person who is driving vehicle and taking a full control over it. There is a limit set according to the driving laws for personal safety, that is the driving time in a day should not be more than six to eight hours because if its more than that then a normal person can be tired enough and there might be a chance of dizziness or sleep which can lead to an accident.