Question: For a User Equipment (UE) to support HARQ feedback disabling per HARQ process for downlink transmission via RRC configuration with npdsch-MultiTB-Config, which of the following must also be supported by the UE?
Option 1: ue-category-M and ntn-Connectivity-5GC-r18
Option 2: Only npdsch-MultiTB-r16
Option 3: Either ue-category-NB or ue-category-M
Option 4: Both ue-category-NB and npdsch-MultiTB-r16, as well as ntn-Connectivity-EPC-r17
Explanation: To support HARQ feedback disabling per HARQ process for downlink transmission with npdsch-MultiTB-Config, a UE must specifically support ue-category-NB. Additionally, indicating support for npdsch-MultiTB-r16 and ntn-Connectivity-EPC-r17 is also mandatory according to the specifications, ensuring the UE can handle multi-TB configurations and necessary connectivity protocols effectively.