Which Is the Reason That H-VPLS Is Considered More Scalable

Multiple Choice

Which is the reason that H-VPLS is considered more scalable than flat VPLS?

A) It minimizes signaling overhead by building two separate layers pseudowire meshes.
B) It minimizes signaling overhead by only requiring a full pseudowire mesh among N-PEs.
C) It eliminates signaling overhead between the N-PE and U-PE.
D) It eliminates signaling overhead on core devices.