Question: In the context of Notification Management for Vertical Applications, as per 3GPP standards, what is the primary interface considered for the functional model described in the Service Enabler Architecture Layer for Verticals (SEAL)?
Option 1: Uu interface
Option 2: S1 interface
Option 3: X2 interface
Option 4: N4 interface
Explanation: The correct answer is Option 1 because, according to the provided context, the notification management feature specifically considers the Uu interfaces. The Uu interface, being the air interface between the User Equipment (UE) and the Radio Access Network (RAN), is crucial for managing notifications in a mobile network, especially for on-network scenarios, highlighting its importance in SEAL's functional model for notification management tailored for vertical applications.