On the PE5 router, there are how many IPv4 and IPv6 OSPF neighbors and how many IPv4 OSPF interfaces? (Choose three)
A . two ipv4 ospf neighbors
B . three ipv4 ospf neighbors
C . two ipv6 ospf neighbors
D . three ipv6 ospf neighbors
E . three ipv4 ospf interfaces
F . four ipv4 ospf interfaces
Answer: A,E,F