Question: What triggers the User Equipment (UE) to consider leaving Event Y2, related to a Candidate L2 U2N Relay UE's performance?
Option 1: The measurement result of the candidate L2 U2N Relay UE (Mr) plus the hysteresis parameter (Hys) exceeds the defined threshold (Thresh).
Option 2: The measurement result of the candidate L2 U2N Relay UE (Mr) minus the hysteresis parameter (Hys) falls below the defined threshold (Thresh).
Option 3: The hysteresis parameter (Hys) alone surpasses the threshold (Thresh) without considering the measurement result (Mr).
Option 4: The measurement result (Mr) of the candidate L2 U2N Relay UE equals the threshold (Thresh) without any offset.
Explanation: According to the specifications for Event Y2, the leaving condition is satisfied when the inequality Y2-2 is fulfilled: Mr + Hys < Thresh. This means the UE considers leaving the event when the sum of the measurement result (Mr) and the hysteresis parameter (Hys) is less than the threshold (Thresh), indicating a decrease in the relay UE's performance below a certain stable margin defined by Hys. **Option 1** correctly reflects this condition, making it the correct answer.