Which three statements about the Route Distinguisher (RD) are true?

Which three statements about the Route Distinguisher (RD) are true? (Choose three.)

A.
The RD is a BGP extended community.

B.
The RD prefix and a route target make the VPNv4 address unique.

C.
RD, similar to the AS number, is assigned to a service provider by the Internet Assigned
Numbers Authority (IANA).

D.
The RD is an 8-byte field.

E.
One customer may use different RDs for the same IPv4 route.