Question: What is the primary purpose of the Nsmsf_SMService_Activate service operation in the 5G System (5GS)?
Option 1: To deactivate SMS services for a specified User Equipment (UE).
Option 2: To modify the existing Access Type(s) for an UE's SMS connectivity.
Option 3: To authorize whether a specified UE is allowed to activate SMS service or add new Access Type for SMS connectivity.
Option 4: To retrieve the current SMS service activation status of an UE.
Explanation: The Nsmsf_SMService_Activate service operation is used to determine if a specified User Equipment (UE) is permitted to activate Short Message Service (SMS) or add new Access Type(s) for SMS connectivity. This operation involves evaluating the inputs provided, such as SUPI, NF ID, RAT Type, and optional parameters like GPSI and GUAMI, to make an informed decision regarding SMS service activation for the UE.