【单选题】
You are designing the DNS name resolution strategy for the internal network.<br />  What should you do？ （）
A、 Configure all internal DNS servers to use the default root hints.
B、 Disable recursion on the DNS server in Seattle. Configure the Seattle DNS to use Dallas DNS server as a forwarder.
C、 Create a root zone on the DNS server in Dallas. Configure the Seattle DNS server to use the Dallas DNS server as a forwarder.
D、 Create a root zone on the DNS server in both Dallas and Seattle.
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