What is required for a driver to carry a Class D permit?

When a driver holds a Class D permit in Massachusetts, they must be accompanied by a licensed driver who is at least 21 years old seated in the front passenger seat. This requirement ensures that a more experienced driver is present to provide guidance and supervision during the learning process. This is an important safety measure, as it allows the permit holder to practice driving under the watchful eye of someone who has the experience and can react appropriately to any issues that might arise on the road.

The other choices do not fulfill the legal requirements for operating a vehicle with a Class D permit. While having a parent in the car can be beneficial for support and instruction, it is not a legal mandate unless that parent is also a licensed driver meeting the age requirement. Similarly, being accompanied by a driving instructor is helpful for formal lessons but is not necessary for all driving scenarios under the permit's guidelines.