Which statement is true about how NSX Manager functions with VMware vCloud Director 9.1?

A. vCloud Director can use vCloud Networking and Security in place of NSX.

B. vCloud Director does not require NSX Manager to deploy virtual networks using VXLAN technology.

C. vCloud Director requires NSX Manager to deploy virtual networks and edge gateways.

D. vCloud Director can deploy edge gateways without NSX Manager.