If an agent wishes to withdraw his registration, which statements are TRUE? I The agent must notify the Administrator II The broker-dealer must notify the Administrator III The withdrawal does not become effective for 30 days IV If there is a customer complaint, the Administrator retains jurisdiction over the agent for a period of 1 year from the withdrawal date AD I only B I and II only III The withdrawal does not become effective for 30 days IV If there is a customer complaint, the Administrator retains jurisdiction over the agent for a period of 1 year from the withdrawal date A B C D I only I and II only III and IV only I , II, III, IV