Question: What is the primary purpose of the `DataInactivityTimer` Information Element (IE) in the Evolved Universal Terrestrial Radio Access (E-UTRA) Radio Resource Control (RRC) protocol?
Option 1: To manage handover procedures between different base stations.
Option 2: To control data inactivity operation, monitoring the duration of inactivity.
Option 3: To regulate the transmission power of User Equipment (UE).
Option 4: To synchronize the scheduling requests from multiple UEs.
Explanation: The `DataInactivityTimer` IE is designed to monitor and manage periods of data inactivity, optimizing network resource allocation by identifying prolonged inactive sessions for efficient radio resource management.