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 to http：//App1. What should you do？（）

A. Configure and enable DFS Replication 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 GlobalNames 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 LegacyWINS on a DNS server. Replicate the LegacyWINS zone to all domain controllers in the forest. Create a host （A） record for the App1 Web server in the zone.