Question: What determines the selection of authentication methods in a 5GS network?
Option 1: UE configuration
Option 2: NPN configuration
Option 3: SNPN configuration
Option 4: EAP method credentials
Explanation: The selection of authentication methods is dependent on the NPN (Non-Public Network) configuration, as stated in the text. This means that the NPN operator's specific deployment settings determine which authentication methods are used in the network.