单项选择题Refer to the exhibit. Which statement is true about the partial MPLS configuration that is shown?()
A.The route-target both 100:2 command sets import and export route-targets for vrf2.
B.The route-target both 100:2 command changes a VPNv4 route to a IPv4 route.
C.The route-target import 100:1 command sets import route-targets routes specified by the route map.
D.The route-target import 100:1 command sets import route-targets for vrf2 that override the other route-target configuration.