Which command would initiate a loopback on a Gigabit Ethernet interface ge-0/0/0?（）

• A、# set interfaces ge-0/0/0 unit 0 loopback
• B、# set interfaces ge-0/0/0 gigether-options loopback
• C、> set interfaces ge-0/0/0 loopback
• D、> loopback ge-0/0/0