Question: In an MBMS context, using User Service Description (USD) and Media Presentation Description (MPD), what is typically indicated by the `MPD@type` element for content delivery that does not utilize Adaptive Bitrate streaming?
Option 1: static
Option 2: dynamic
Option 3: adaptive
Option 4: hybrid
Explanation: Since Adaptive Bitrate streaming is not used, the `MPD@type` element contains the value 'dynamic'. This indicates that while the bitrate is fixed for each representation, other aspects of the media presentation can be dynamically updated or managed during the session.