An engineer must ensure that Cisco ACI flushes the appropriate endpoints when a topology change notification message is received in an MST domain. Which three steps are required to accomplish this goal? (Choose three.)
A. Enable the BPDU interface controls under the spanning tree interface policy.
B. Configure a new STP interface policy.
C. Bind the spanning tree policy to the switch policy group.
D. Associate the STP interface policy to the appropriate interface policy group.
E. Create a new region policy under the spanning tree policy.
F. Map VLAN range to MAT instance number.
