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
Answer: B