What is the legal responsibility of a driver regarding passengers?

The legal responsibility of a driver regarding passengers primarily includes ensuring that all passengers wear seatbelts. This requirement is enforced because seatbelts significantly enhance safety in vehicles, reducing injury for both the driver and passengers in the event of an accident. The law places the onus on the driver to make sure that all occupants of the vehicle are secured properly, as this is essential for their protection.

While the other choices reference various responsibilities or considerations, they do not reflect the core legal duty outlined in driving regulations. Ensuring all passengers are registered or have proper identification may be relevant in specific contexts, but they are not standard legal obligations of the driver in relation to passenger safety. Providing entertainment options is also outside the scope of a driver's legal responsibilities while operating a vehicle. Thus, the focus on seatbelt usage captures the essential legal expectation for drivers in terms of passenger safety.