By default, each port in a Cisco Catalyst switch is assigned to VLAN1. Which two recommendations are key to avoid unauthorized management access?（）

• A、Create an additional ACL to block the access to VLAN 1.
• B、Move the management VLAN to something other than default.
• C、Move all ports to another VLAN and deactivate the default VLAN.
• D、Limit the access in the switch using port security configuration.
• E、Use static VLAN in trunks and access ports to restrict connections.
• F、Shutdown all unused ports in the Catalyst switch.