Question: In an MBMS (Multimedia Broadcast/Multicast Service) setup, what is implied if a `basePattern` value within a `broadcastAppService` element matches a portion of a resource URL requested by an application, specifically in DASH (Dynamic Adaptive Streaming over HTTP) over MBMS?
Option 1: The Representation is only available through unicast.
Option 2: The Representation's availability is restricted to a specific service area.
Option 3: The Representation is part of a different MBMS service.
Option 4: The corresponding requested resource is carried over an MBMS bearer.
Explanation: This indicates the resource is carried over an MBMS bearer, crucial for efficient broadcast/multicast delivery in telecom networks, optimizing content distribution in wireless communications, especially in multimedia broadcasting scenarios.