What is an appropriate use for private IPv4 addressing?

Selected Answer: D A. to allow hosts inside to communicate in both directions with hosts outside the organization Host inside a LAN may also use public IP addresses to communicate with hosts inside and outside the organization. Wrong answer. B. on internal hosts that stream data solely to external resources Look at answer A. Wrong answer. C. on the public-facing interface of a firewall Since private IP addresses can not be used on the public Internet, how can you configure a private IP address on the public-facing interface of a firewall? Wrong answer. D. on hosts that communicate only with other internal hosts Would you buy and use public IP addresses for hosts that communicate only inside your LAN? Correct answer.