Which two statements about VPNv4 address are true？ （）

A、The VPNv4 address is 128 bits long with a 128-bit long subnet mask

B、The VPNv4 address consists of an RD and an IPv4 address

C、The VPNv4 address is 96 bits long with a 64-bit long subnet mask

D、The VPNv4 address is 128 bits long with a 64-bit long subnet mask

E、The VPNv4 address consists of an RT and an IPv4 address

F、The VPNv4 address is 96 bits long with a 32-bit long subnet mask