You are designing a DNS infrastructure to meet the Internet name resolution requirements.  What should you do？ （）

• A、 Create a standard primary zone named “.” on all DNS servers.
• B、 Create an Active Directory-integrated zone named “.” on a DNS server on Los Angeles.
• C、 Configure all DNS servers to use forwarders. Specify the IP address of the DNS server at the local ISP.
• D、 Enable default root hints on all DNS servers.
• E、 Disable recursion on all DNS servers.