Select all statements accurately describing Virtual LANs (VLANs).

VLANs make it easier for network administrators to manage LAN security, load, and broadcast traffic.
To use a VLAN, all devices on the network must have VLAN support.
To identify the LAN a frame should be sent to on a VLAN, a VLAN-capable switch uses the VLAN tag in combination with the source and destination MAC addresses.
VLANs make it possible to dynamically assign devices to LANs in software, without physically rewiring them.
The Ethernet header does not support VLANs, so VLAN-capable devices use a separate protocol internally for VLAN communications.