When a new trunk link is configured on an IOS-based switch, which VLANs are allowed over the link?
A.
By default, all VLANs are allowed on the trunk.
B.
No VLANs are allowed; you must configure each VLAN by hand .
C.
Only configured VLANs are allowed on the link.
D.
Only extended VLANs are allowed by default.