Which two constructs are required to complete the task?

An engineer must connect Cisco ACI fabric using Layer 2 with external third-party switches. The third-party switches are configured using 802.1s protocol.

Which two constructs are required to complete the task? (Choose two.)
A . spanning tree policy for mapping MST Instances to VLANs
B . MCP policy with PDU per VLAN enabled
C . MCP instance policy with administrative slate disabled
D . dedicated EPG for native VLAN
E . static binding of native VLAN in all existing EPGs

Answer: B,C