Which of the following statements about a management VPLS are true?

A management VPLS carries customer traffic over the non-blocking spoke-SDP

A VPLS service must be defined as a management VPLS upon creation to take on the role of a management VPLS

The state of a spoke-SDP within a user VPLS will take on the state of the spoke-sdp within the management VPLS.

The management VPLS must be created before the user VPLS.