Question: In a UTRAN Iub interface, when a Node B sends a RESET REQUEST message to the CRNC with the Reset Indicator IE set to 'Communication Context', what action does the CRNC take regarding user plane transport bearers for the indicated contexts?
Option 1: The CRNC modifies the existing user plane transport bearers towards the Node B involved in the indicated CRNC Communication Contexts.
Option 2: The CRNC initiates release of the user plane transport bearers towards the Node B involved in the indicated CRNC Communication Contexts.
Option 3: The CRNC suspends the user plane transport bearers temporarily for the indicated CRNC Communication Contexts until a RESET RESPONSE is sent.
Option 4: The CRNC ignores the user plane transport bearers for the indicated CRNC Communication Contexts during the reset procedure.
Explanation: When the Reset Indicator IE is set to 'Communication Context', the CRNC clears all related resources, initiating the release of user plane transport bearers towards the Node B involved in those contexts, ensuring a complete reset and freeing up resources by terminating existing bearer connections.