A.Issue the operational command clear interfaces ge-0\/0\/0 loopback local.
B.No command is necessary, the loopback times-out in 5 minutes.
C.Issue the configuration command clear interfaces ge-0\/0\/0 loopback, then commit.
D.Issue the configuration command delete interfaces ge-0\/0\/0 gigether-options loopback , then commit.
参考答案：D
