How does Palo Alto Networks integrate with VXLAN tagging?

How does Palo Alto Networks integrate with VXLAN tagging?
A . does not integrate with VXLAN tagging, so virtual appliances cannot be provided, but hardware appliances can be offered at the data center gateway border
B . integrates with VXLA
C . but scripting is necessary, and Professional Services should be engaged
D . integrates fully into VXLAN architectures if they are provided by VMware
E . does not integrate natively with VXLAN tagging, network equipment can convert VXLAN flows to VLANs and send those VLANs to Palo Alto Networks firewalls

Answer: C