Which three statements about MPLS traffic engineering (MPLS TE) are true? (Choose three)

A.
MPLS TE supports admission control

B.
MPLS TE tunnel traffic is a link attribute to compute the TE tunnel path

C.
MPLS TE uses BGP extension to advertise link attributes

D.
MPLS TE provides protection capability

E.
MPLS TE uses RSVP to establish LSP