A UE has a PDU session established using slice 1. The operator removes slice 1 from the UE subscription data stored in UDM. Which of the following actions is NOT performed as a result?

A. UDM notifies the serving AMF about the UE subscription data modification.

B. AMF initiates the UE configuration update procedure.

C. AMF requests the UE to release the established PDU session.

D. UE updates its slicing information with the data received from AMF.