Question: What is the primary purpose of the 'U: pending Floor Revoke' state in the floor control interface between the MCPTT client and the floor control server?
Option 1: To initiate a new Floor Request by the MCPTT client
Option 2: To provide a grace period after sending a Floor Revoke message, during which timer T8 (Floor Revoke) runs
Option 3: To signal the successful granting of the floor to an MCPTT user
Option 4: To indicate a network failure in the LMR system
Explanation: The 'U: pending Floor Revoke' state manages the period after sending a Floor Revoke message, running a timer to ensure orderly transition and allowing for necessary adjustments before revocation takes full effect, crucial for efficient media plane control in telecom networks.