In a state-administrator case study, the scenario starts here. The key is the registration, exemption, or ethical rule doing the real work. When an agent's employment with a registered broker-dealer is terminated, who is responsible for notifying the state Administrator?

Why C — Both the agent and the broker-dealer must promptly notify the Administrator

Under USA Section 202(c), when an agent ceases to be employed by a broker-dealer, both the agent and the broker-dealer must promptly notify the state Administrator. This dual notification requirement ensures the Administrator receives timely and accurate information about changes in agent registration status. State-law analysis leads to the same conclusion despite the alternate scenario.