Question: Upon receiving a Floor Release message with Acknowledgment required, what action is taken by the floor control interface towards the MCPTT client regarding messaging?
Option 1: Send a Floor Ack message with Message Type set to '4' and Source field set to '2', then remove the MCPTT client from the active floor request queue if present.
Option 2: Send a new Floor Request message to re-initiate the floor control process, updating the Source field to '1'.
Option 3: Immediately transition to the 'Permitted' state without sending any acknowledgment messages.
Option 4: Ignore the Acknowledgment requirement if the MCPTT client is not in the active floor request queue.
Explanation: According to the specified behavior for handling a Floor Release message with Acknowledgment required, the interface must send a Floor Ack message with specific settings and then manage the MCPTT client's status in the floor request queue accordingly. This ensures proper acknowledgment and state management in the floor control process.