On Cisco IOS XR software, what are the four valid address-family configuration command options in static route configuration mode? (Choose four.)
A. address-family ipv4 unicast
B. address-family ipv6 unicast
C. address-family ipv4 multicast
D. address-family ipv6 multicast
E. address-family vpnv4
F. address-family vpnv6
