Question: Upon expiration of Timer T20 (Floor Granted) with Counter C20 reaching its upper limit, what action does the IWF (Interworking Function) Floor Control Server's floor control arbitration logic take regarding its state?
Option 1: Transition to 'F: Floor Requested' state to re-initiate floor granting process.
Option 2: Enter a 'Timeout Error' state and notify all connected User Equipment (UEs).
Option 3: Automatically release the floor and enter an 'Idle' state.
Option 4: Remain in the 'G: Floor Taken' state.
Explanation: According to the specified behavior for when Timer T20 (Floor Granted) expires and Counter C20 reaches its upper limit, the IWF floor control server's logic is designed to maintain the current 'G: Floor Taken' state. This ensures continuity of the ongoing communication session, avoiding unnecessary state transitions or interruptions that could impact mission-critical communications in MCPTT scenarios.