Regarding MP-BGP, whici of the following description is incorrect?

Regarding MP-BGP, whici of the following description is incorrect?
A . When the PE and CE exchange routes through BGP, you need to create a BGP process for each VPN instance on the CE
B . MP-BGP’s message type and VPNv4 routing policy are the same as BGP-4
C . MP-BGP needs to assign private network labels to VPNv4 routes
D . MP-BGP advertises VPNv4 routes through two attributes: MP_REACH_NLRI and MP_UREACH_NLRI

Answer: A