Final answer:
Securities regulators retain jurisdiction over a person for two years after a Form U5 is filed, indicating that option 4) 2 years is the correct answer.
Step-by-step explanation:
The question you've asked pertains to the duration of a securities regulators' jurisdiction over a person after a Form U5 is filed. Form U5 is the Uniform Termination Notice for Securities Industry Registration, used by broker-dealers to terminate the registration of an individual in the securities industry. According to FINRA rules, securities regulators typically retain jurisdiction over a person for two years following the filing of a Form U5. This means that the correct answer to your question is option 4) 2 years.