What correctly describes the role of OpenFlow in an SDN solution?
A. OpenFlow regulates the communications among teamed SDN controllers, as well as between an SDN controller and a network infrastructure device
B. OpenFlow integrates the SDN controller into a larger management suite such as that provided in an HP CloudSystern solution.
C. OpenFlow is a communication protocol that an SDN controller can use to control devices at the network infrastructure layer.
D. OpenFlow is the open standard technology that regulates SDN control plane and application plane communications.