You are the network administrator for Fabrikam， Inc. The network contains a DNS server named Server1.  Server1 is configured to resolve queries for external internet resources. Server1 also hosts the fabrikam.com internal zone for Active Directory. Users report that they are directed to the wrong Web site when browsing for well-known Internet Web sites.  You need to minimize the occurrence of unexpected results when users browse the Internet in the future. You also need to minimize disruption to users. What should you do？（）

• A、Enable the Disable recursion setting in the advanced properties of Server1.
• B、Enable Fail on load if bad zone data setting in the advanced properties of Server1.
• C、Enable the Secure cache against pollution setting in the advanced properties of Server1.
• D、Enable the Enable automatic scavenging of stale resource records setting in the advanced properties of Server1 and set it to 7 days.