Refer to the exhibit. Which statement describes the result of this BGP configuration?
A. R1 operates using IPv4 and VPNv4 address families.
B. R1 operates on IPv6 only because the bgp default ipv4-unicast command is missing.
C. R1 establishes a VPNv4 eBGP relationship with neighbor 192.168.1.1.
D. R1 establishes an iBGP relationship with peer 192.168.1.1.