Question: For a User Equipment (UE) to support Group Wake Up Signal (WUS) without group resource alternation for Frequency Division Duplexing (FDD) in Radio Resource Control (RRC)_IDLE, which of the following UE capabilities is **NOT** a prerequisite?
Option 1: ce-ModeA-r13 support
Option 2: ue-Category-M support
Option 3: Any ue-Category-NB support
Option 4: Both ce-ModeA-r13 and any ue-Category-NB support
Explanation: According to the specifications, a UE must either support ce-ModeA-r13 or any ue-Category-NB to be capable of Group WUS without group resource alternation for FDD in RRC_IDLE. There is no mention of ue-Category-M as a prerequisite for this specific feature, making it the correct answer among the options provided.