Your network consists of an Active Directory forest that contains one domain. AlI domain controllers run Windows Server 2008 and are configured as DNS servers. You have an Actrve Directory-integrated zone. You have two Actrve Directory sites. Each site contains five domain controllers. You add a new NS record to the zone. You need to ensure that all domain controllers immediately receive the new NS record. What should you do（）

• A、From the DNS Manager console， reload the zone.
• B、From the Services snap-in， restart the DNS Server service.
• C、From the command prompt， run repadmin /syncall.
• D、From the DNS Manager console， increase the version number of the SOA record.