Which statement about VPLS is true?

A.
All CE devices emulate a bridge

B.
All provider devices emulate a bridge

C.
Hierarchical VPLS reduces signaling overhead

D.
Each PE device emulates a bridge

E.
Each CE device emulates a bridge

Explanation:
A hierarchical model can be used to improve the scalability characteristics of VPLS. Hierarchical
VPLS (HVPLS) reduces signaling overhead and packet replication requirements for the provider
edge.