Final answer:
A real estate broker with an inactive license does not have to get their principal broker to sign their documents, but they must still comply with requirements such as advertising disclosures and retaining documents for the required period.
Step-by-step explanation:
When a real estate broker has an inactive license, they are exempt from certain activities that are normally required for active, practicing brokers. Specifically, an inactive broker does not have to get their principal broker to sign their documents since they are not actively engaging in real estate transactions or representing clients. They also don't have to put the money into a neutral escrow because they are not handling transactions. However, inactive brokers are still required to follow certain rules, such as advertising guidelines and record keeping, so they must still identify themselves as a broker in advertisements (if they advertise) and keep their documents for the legally required period.
The correct answer to the question is that a real estate broker with an inactive license is exempt from having to get their principal broker to sign their documents, option (a).