To provide firewall traversal, which components are needed?
A.
2 CiscoTelePresenceVideo Communication Server Expressways
B.
1 CiscoTelePresenceVideo Communication Server Control and 1 Cisco
TelePresenceVideo Communication Server Expressway
C.
2 CiscoTelePresenceVideo Communication Server Controls
D.
1 CiscoTelePresenceVideo Communication Server Control and 2 CiscoTelePresence
Video Communication Server Expressways