In this scenario, what must you do in the underlay to ensure that the VXLAN overlay will be able to function properly?

You are designing a Layer 3 fabric underlay using EBGP. You will implement an EVPN-signaled VXLAN overlay on the Layer 3 fabric.

In this scenario, what must you do in the underlay to ensure that the VXLAN overlay will be able to function properly?
A . The underlay should advertise the host-connected interfaces on all leaf devices.
B . Each device in the underlay should advertise its loopback address.
C . The underlay should be configured with a separate VRF for each potential tenant.
D . The underlay should support the PIM protocol.

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Answer: B