Which three options are components of Media Resources Architecture? (Choose three)

Music on Hold is a media resource service that consumes infrastructure provided by the architecture but is not itself a structural component of the Media Resources Architecture framework.

The Media Resource Manager (MRM) is the CUCM software component that processes media resource requests from applications and performs allocation decisions based on availability.

A Media Resource Group (MRG) is a logical grouping of individual media resource devices (such as transcoders or conference bridges) that forms a resource pool administrators can target.

Route lists are part of CUCM's call routing infrastructure used with route groups and gateways for outbound PSTN routing and have no function within media resource management.

Route groups are also a call routing construct used to pool gateways for outbound dialing and are entirely separate from the media resources subsystem.

A Media Resource Group List (MRGL) is an ordered list of MRGs assigned to devices or device pools, allowing CUCM to select resources in priority order and providing redundancy when the first group is unavailable.