Which building blocks make up the Adaptive Threat Defense phase of Cisco SDN strategy?

A.
VoIP services, NAC services, Cisco IBNS

B.
network foundation protection, NIDS services, adaptive threat mitigation services

C.
firewall services, intrusion prevention, secure connectivity

D.
firewall services, IPS and network antivirus services, network intelligence

E.
Anti-X defense, NAC services, network foundation protection