Question: What is the primary purpose of the Transmission/Reception Control functional entity in Mission Critical Data (MCData) communications?
Option 1: To manage authentication protocols between MCData servers and User Equipment (UE)
Option 2: To optimize data encryption methods for secure transmission
Option 3: To arbitrate multiple data requests and apply policy for appropriate data transmission between MCData UEs
Option 4: To monitor network congestion for Quality of Service (QoS) adjustments
Explanation: The Transmission/Reception Control entity ensures the right policy is applied to facilitate transmission of appropriate data between User Equipment (UEs) in mission-critical communications, maintaining integrity and priority of critical data exchanges.