In JUNOS software, which statement is true regarding the OSP...

In JUNOS software, which statement is true regarding the OSPF advertisement of the loopback IP address on the ABR?（）A. When Area 0 is active, the loopback interface must be configured in OSPF for it to be advertised. B. When Area 0 is active, the loopback address is automatically advertised into other areas. C. When Area 0 is active, the OSPF router-id must match the loopback address for the loopback address to be advertised. D. When Area 0 is active, the router-id must be configured for the loopback address to be advertised.