Question: In a network selection scenario, if a UE encounters two cells with TAI values matching its higher and lower priority OPLMNs, which cell should the UE prefer for attachment, assuming both have unrestricted access control?
Option 1: The UE should attach to the first encountered matching OPLMN.
Option 2: The UE's preference depends on signal strength; thus, it will choose the cell with the stronger signal.
Option 3: The UE must perform a random selection between the two cells to distribute load.
Option 4: The UE should attach to the cell listed as a higher priority OPLMN in EFOPLMNwACT.
Explanation: According to network selection rules, the OPLMN with the higher priority (as defined by its position in EFOPLMNwACT) takes precedence over the one with lower priority. Therefore, the UE should prefer the cell with the higher priority listing in EFOPLMNwACT for attachment, assuming both cells have unrestricted access control.