A network administrator needs to configure port security on a switch.which two statements are true? （）

• A、The network administrator can apply port security to dynamic access ports
• B、The network administrator can configure static secure or sticky secure mac addresses in the voice vlan.
• C、The sticky learning feature allows the addition of dynamically learned addresses to the running configuration.
• D、The network administrator can apply port security to EtherChannels.
• E、When dynamic mac address learning is enabled on an interface,the switch can learn new addresses,up to the maximum defined.