Question: Which entity decides the T304 trigger for Successful PSCell Change Report (SPR) in case of PSCell addition/CPA and PSCell change/CPC?
Option 1: UE
Option 2: Target SN
Option 3: Source SN
Option 4: MN
Explanation: According to the text, for PSCell addition/CPA and PSCell change/CPC (MN or SN initiated), the target SN always decides the T304 trigger for SPR. This is important because the target SN performs root cause analysis, which requires accurate triggering of the SPR report.