问题：
[单选] Your network contains a single Active Directory forest. The forest contains two domains named contoso.com and sales.contoso.com. The domain controllers are configured as shown in the following table. Server name Domain DNS zones hosted DC1 contoso.com contoso.com DC2 contoso.com contoso.com DC3 sales.contoso.com sales.contoso.com DC4 sales.contoso.com sales.contoso.com All domain controllers run Windows Server 2008 R2. All zones are configured as Active Directory-integrated zones. You need to ensure that contoso.com records are available on DC3. Which command should you run（）
dnscmd.exe DC1.contoso.com /ZoneChangeDirectoryPartition contoso.com /domain。dnscmd.exe DC1.contoso.com /ZoneChangeDirectoryPartition contoso.com /forest。dnscmd.exe DC3.contoso.com /ZoneChangeDirectoryPartition contoso.com /domain。dnscmd.exe DC3.contoso.com /ZoneChangeDirectoryPartition contoso.com /forest。
