What does the command vlan dot1q tag native accomplish when configured under global
configuration?

A.
All frames within the native VLAN are tagged, except when the native VLAN is set to 1.

B.
It allows control traffic to pass using the non-default VLAN.

C.
It removes the 4-byte dot1q tag from every frame that traverses the trunk interface(s).

D.
Control traffic is tagged.