Which of the following statements best describes a route target?

[answerhappygod]

Which of the following statements best describes a route target?

A. A route target is a BGP extended community used to identify the VRF table for a prefix at the receiving PE
B. A route target is a mechanism from which VPRN controls the distribution of VPN routing information.
C. Route target attributes are earned in a MP-BGP as attributes of the route.
D. A route target is used by the PE router to identify the VRF that a VPN-lPv4 prefix is associated with.
E. All of the above statements describe a route target
F. None of the above statements describe a route target