Question: For a UE capable of NR Sidelink U2N Remote UE operation, what triggers the consideration that the threshold conditions are met (entry) if the UE has no serving cell?
Option 1: The RSRP measurement of any detected cell exceeds `threshHighRemote` by `hystMaxRemote`.
Option 2: The absence of a serving cell inherently meets the threshold conditions, regardless of RSRP measurements.
Option 3: Configuration of `threshHighRemote` is not received from the network.
Option 4: The UE successfully connects to an L2 U2N Relay UE.
Explanation: According to the specified behavior for a UE with no serving cell, the threshold conditions are considered met (entry) by default. This is because the conditions tied to RSRP measurements of a PCell or camping cell cannot be evaluated in the absence of such a cell, leading to an implicit satisfaction of the entry condition.