What information from each printer is needed to always assign them the same IP address when dhcpd is used as the DHCP server?

A network has many network printers connected and they should get their addresses using DHCP. What information from each printer is needed to always assign them the same IP address when dhcpd is used as the DHCP server?

A.
MAC address

B.
Host name

C.
Serial number

D.
Factory default IP address

E.
Built-in network card type