Which two actions should be taken to ensure a scalable solution when multiple EPGs in a VRF require unrestricted communi

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Which two actions should be taken to ensure a scalable solution when multiple EPGs in a VRF require unrestricted communication? (Choose two.)

A. Configure a taboo contract between the EPGs that require unrestricted communication between each other.
B. Enable Preferred Group Member under the EPG Collection for VRF section.
C. Set the VRF policy control enforcement preference to Unenforced.
D. Set the EPGs that require unrestricted communication between each other as preferred group members.
E. Set the EPGs that require policy enforcement between each other as preferred group members.