Your company has an active directory forest that has five domains. All DNS servers are domain controllers. You need to ensure that users from all domains are able to access a web server named App1 by browsing http://App1. What should you do?（）

A. Configure and enable DFS-R on the App1 Web Server.
B. Create a host (AAAA) record for the App1 Web server in the DNS zone for the forest root domain.
Create a zone named GlobalNames on a DNS server. Replicate the GloballNames zone to all domain controllers in the forest. Create a host (A) record for the App1 Web server in the zone.
D. Create a zone named LegacyWNS on a DNS server. Replicate the LegacyWNS zone to all domain controllers in the forest. Create a host (A) record for the App1 Web server in the zone.