Question: When the Discovery-Type in a Match-Report AVP is set to 'MONITORING_REQUEST_FOR_OPEN_PROSE_DIRECT_DISCOVERY', which of the following elements are MANDATORY to be included in the Match-Report?
Option 1: ProSe-App-Code, ProSe-Metadata-Index-Mask, PC5-tech
Option 2: ProSe-App-Id, ProSe-Validity-Timer, ProSe-Match-Refresh-Timer
Option 3: ProSe-App-Code, ProSe-App-Id, ProSe-Validity-Timer, ProSe-Match-Refresh-Timer
Option 4: PC5-tech, ProSe-Application-Metadata, Discovery-Type
Explanation: According to the specifications for Match-Report AVP when the Discovery-Type is set to 'MONITORING_REQUEST_FOR_OPEN_PROSE_DIRECT_DISCOVERY', the report must contain a ProSe Application Code (ProSe-App-Code), the associated ProSe Application ID Name (ProSe-App-Id), the validity time for which the ProSe Application Code is valid (ProSe-Validity-Timer), and the associated match report refresh timer (ProSe-Match-Refresh-Timer).