Which three modes of management models for the Layer 4 - Layer 7 Service Graph are true? (Choose three)

Which three modes of management models for the Layer 4 – Layer 7 Service Graph are true? (Choose three)

Which three modes of management models for the Layer 4 – Layer 7 Service Graph are true? (Choose three)
A . service manager mode
B . application-centric mode
C . network policy mode
D . standalone mode
E . network-centric mode
F . service-integrated mode
G . service policy mode

Answer: A C G