Refer to the exhibit.You are designing a loop-free hierarchical VPLS service. Which two design considerations should be implemented for the pseudowires between the N-PE and U-PE routers? (Choose two.)

Disabling split horizon toward N-PE routers would allow traffic received from one N-PE to be forwarded to another N-PE, creating loops in the core mesh.

Disabling split horizon toward the U-PE spoke pseudowires on the N-PE allows traffic received from one U-PE to be forwarded to another U-PE through the hub, which is required for spoke-to-spoke communication in H-VPLS.

Enabling split horizon toward U-PE pseudowires would block the N-PE from forwarding traffic between different U-PE spokes, breaking communication between sites attached to different U-PEs.

Enabling split horizon toward N-PE pseudowires ensures that traffic received from one N-PE in the core full-mesh is not re-forwarded to another N-PE, preventing broadcast loops in the hierarchical VPLS core.

Disabling MAC learning on the U-PE would force all traffic to flood rather than be forwarded based on learned MAC addresses, undermining VPLS scalability.

Disabling MAC learning on N-PE routers would eliminate intelligent MAC-based forwarding at the hub, causing excessive flooding throughout the VPLS domain.