Question: What type of authentication methods are included for accessing a localized service in the 5G System?
Option 1: Any key-generating EAP method, primary authentication, secondary authentication, slice specific authentication or onboarding procedures
Option 2: Only primary authentication and secondary authentication
Option 3: Only slice specific authentication and onboarding procedures
Option 4: None of the above
Explanation: According to the security architecture for the 5G System, accessing a localized service can utilize various existing authentication procedures, including any key-generating EAP method when applicable. This encompasses primary authentication, secondary authentication, slice specific authentication, and onboarding procedures, providing flexibility and robust security measures for localized services in the 5G network.