Question: In the context of 3GPP management services, what is the outcome for a management service consumer using multiple management service consumer reference attributes to subscribe to notifications about a Subscriber's IOC (Information Object Class)?
Option 1: A single NtfSubscriber instance is created, aggregating all reference attributes.
Option 2: Multiple NtfSubscriber instances are created, each corresponding to a different attribute.
Option 3: The subscription is rejected due to the use of multiple reference attributes.
Option 4: The system automatically merges attributes into an existing NtfSubscriber instance.
Explanation: According to the defined behavior for IOC support from a notification perspective, using multiple management service consumer reference attributes for subscription results in the creation of multiple NtfSubscriber instances. This is because each attribute set fully identifies a subscriber, leading to separate notifications (NtfSubscriber instances) for each unique attribute combination used during subscription.