Question: In a Detach or PDP Context Deactivation procedure, what information does the SGSN provide to the GGSN/S-GW regarding the Mobile Station (MS)?
Option 1: Only the last known IP address of the MS
Option 2: The last known location of the MS and the time at which the MS was in that location
Option 3: The current PDN type and APN of the MS
Option 4: The IMSI and IMEI of the MS
Explanation: When a Detach or PDP Context Deactivation occurs, the SGSN informs the GGSN/S-GW about the last known location of the MS and the time it was in that location, providing temporal context for accurate tracking and management purposes.