Refer to the exhibit. An ISP engineer configured a VRF to isolate traffic for the customer ciscotest as shown. Now, the engineer must implement the Intra-AS VPN feature on PE1 to pass traffic between customer sites.
Which additional configuration must the engineer apply to PE1 to meet this requirement?

A. router bgp 64525 address-family ipv4 unicast neighbor 192.168.1.1 remote-as 64520 update-source Loopback0 address-family ipv4 unicast B. router bgp 64525 address-family vpnv4 unicast neighbor 192.168.1.1 remote-as 64525 update-source Loopback0 address-family vpnv4 unicast C. router bgp 64525 address-family ipv4 unicast neighbor 192.168.1.1 remote-as 64526 address-family ipv4 unicast D. router bgp 64525 address-family vpnv4 unicast neighbor 192.168.1.1 remote-as 64516 update-source Loopback0 address-family vpnv4 unicast