【单选题】
A 上面为业务交换机侧的VRF数据，下面为VNF侧的VRF数据
The first piece is the VRF data at the service switch side, while the second piece is the VRF data at the VNF side.
B 2个VRF作用相同
The two VRFs have the same functions.
C 上面为VNF侧的VRF数据，下面为业务交换机侧的VRF数据
The first piece is the VRF data at the VNF side, while the second piece is the VRF data at the service switch side.
D 只有上面的VRF数据生效
Only the first piece is valid.
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