You have traffic classified in your switch to use priority 7. You decide to enable stacking on the
switch. Your traffic is no longer being queued in priority 7.
Which two events happen when you enable stacking? (Choose two.)

A.
You must reconfigure all priorities.

B.
Traffic previously queued for 7 is now queued in 6.

C.
A virtual 9th priority queue has been created and is now the highest priority.

D.
Configuration parameters for QoS 7 are now ignored.