Question: What is the significance of `FeatureSetCombinationId = 0` in the context of UE-NR-Capability or UE-MRDC-Capability?
Option 1: It refers to a reserved entry for future feature set combinations.
Option 2: It identifies the first entry in the featureSetCombinations list.
Option 3: It signifies an invalid or uninitialized FeatureSetCombination.
Option 4: It is used exclusively for UE-MRDC-Capability, not UE-NR-Capability.
Explanation: `FeatureSetCombinationId = 0` points to the initial entry within the list of feature set combinations as defined in either UE-NR-Capability or UE-MRDC-Capability, making the first entry easily identifiable and accessible for configuration and capability negotiations between the User Equipment (UE) and the network.