What is the purpose of the Cisco VLAN Trunking Protocol?

A.
To allow traffic to be carried from multiple VLANs over a single link between switches

B.
To allow native VLAN information to be carried over a trunk link

C.
To allow for managing the additions, deletions, and changes of VLANs between switches

D.
To provide a mechanism to manually assign VLAN membership to switch ports

E.
To provide a mechanism to dynamically assign VLAN membership to switch ports