Which statement is correct about the Cisco QoS SDM wizard?

Which statement is correct about the Cisco QoS SDM wizard?

A.
The best-effort class will need to have it’s percentage entered in the QoS Policy Generation screen.

B.
SCM QoS wizard provides real-time validation of application usage of WAN bandwidth.

C.
The SDM wizard is not able to monitor QoS policing traffic.

D.
The SDM QoS wizard is pre-installed on enterprise routers.