If a driver holds a permit, what must all passengers do?

The correct answer emphasizes the importance of safety regulations mandated for drivers holding a permit. When a driver has a learner's permit, it is crucial that all passengers are buckled up, as this is a key component of road safety. Seatbelts significantly decrease the risk of injury in the event of an accident and are required by law in Nebraska. This requirement helps promote responsible driving habits and ensures that everyone in the vehicle is protected.

The other choices do not reflect the realities of safety regulations or driver responsibility. While wearing a helmet is paramount for certain activities, like motorcycle riding, it doesn't apply to all passengers in a vehicle equipped with seatbelts. Remaining seated is a basic safety guideline but does not encompass the specific requirement of buckling up. Lastly, stating that no restrictions apply misrepresents the legal responsibilities that come with holding a permit, which indeed includes ensuring the safety of all vehicle occupants by ensuring they are properly restrained.