Which command configures port-security with a manually assigned MAC address abcd.abcd.abcd on an access port connected to a VoIP handset?

The command switchport port-security mac-address abcd.abcd.abcd correctly configures port security with a static MAC address. This command explicitly tells the switch to allow only the device with MAC address abcd.abcd.abcd to send traffic through this specific port. The options including vlan 4 or vlan voice are incorrect because when configuring a static MAC address for port security, you do not specify the VLAN directly within the mac-address command. The port's access VLAN or voice VLAN is already configured separately, and port security operates within the context of those existing VLAN assignments. The sticky keyword is used to dynamically learn MAC addresses and then "stick" them to the configuration, not for manually assigning a specific MAC address.