How should TCP/IP be configured on the ent0 network adapter?

A.
ifconfig en0 192.168.10.1 netmask 255.255.255.0 gateway 192.168.10.254
B.
ifconfig ent0 192.168.10.1 netmask 255.255.255.0 gateway 192.168.10.254
C.
mktcpip h test61 -a 192.168.10.1 -i en0 m 255.255.255.0 g 192.168.10.254 -s
D.
mktcpip h test61 -a 192.168.10.1 -i ent0 m 255.255.255.0 g 192.168.10.254 s