The Company LAN switches are being configured to support the use of Dynamic VLANs. Which of the following are true of dynamic VLAN membership？（）
- AVLAN membership of a user always remains the same even when he/she is moved to another location.
- BVLAN membership of a user always changes when he/she is moved to another location.
- CMembership can be static or dynamic.
- DMembership can be static only.
- ENone of the other alternatives apply.