Which two Cisco AutoQoS interface statements are true? (Choose two)

A.
AutoQoS is supported on Frame Relay multipoint subinterfaces.

B.
AutoQoS is supported on low-speed ATM PVCs in point-to-point subinterfaces.

C.
AutoQoS is supported on serial PPP and HDLS interfaces.

D.
AutoQoS is supported only on Frame Relay main interfaces and not on any subinterface configuration.