Which statement is true?

Refer to the exhibit.

Which statement is true?
A . Endpoints can make calls to unknown IP addresses without the VCS querying any neighbors.
B . If the VCS receives a call to an unknown IP address, it queries its neighbors for the remote address and if permitted, it routes the call through the neighbor.
C . Endpoints that are registered directly to the VCS can call only an IP address of a system that is also registered directly to that VC
E . Dialing by IP address is not supported on VC

Answer: A