What legal documents must you carry while driving?

The correct choice identifies the essential legal documents that a driver must possess while operating a vehicle. Carrying a valid driver's license demonstrates that the driver is authorized to operate the vehicle and has passed the necessary skills and knowledge tests. Vehicle registration serves as proof that the vehicle is properly registered with the state, indicating that it is legally recognized for use on public roads. Proof of insurance is crucial as it shows that the driver has the required financial protection in case of an accident or damage caused by the vehicle. Together, these three documents ensure that a driver complies with state laws and is prepared for any legal or safety-related situations on the road.

In contrast, simply carrying just the driver's license and registration does not meet the legal requirements since it omits proof of insurance, which is vital for liability protection. Only having proof of insurance would neglect the necessity of having a valid driver's license and vehicle registration. Lastly, carrying the vehicle title, while important for ownership purposes, does not fulfill the immediate legal obligations for driving on public roads.