Service graphs and service functions have which three characteristics? (Choose three.)
A. Service graphs can only consist of a single service appliance.
B. Service graph edges are directional.
C. Taps (hardware-based packet copy service) can be attached to different points in the service graph.
D. Service appliances are dynamically detected and configured when added to a service graph.
E. The service graph restricts the administrator to linear service chains.
F. Traffic can be reclassified again in the network after a service appliance emits it.
