You are designing a strategy to ensure that DNS queries always take the most efficient route to get resolved.  Which action or actions should you perform？（）

A.Configure conditional forwarding on the corporate DNS servers to point the development DNS servers.

B.Configure conditional forwarding on the development DNS servers to point the corporate DNS servers.

C.Configure conditional forwarding on the perimeter network DNS servers to point the corporate and development DNS servers.

D.Configure forwarding on the corporate and development DNS servers to point the perimeter network DNS servers.

E.Disable root hints on the perimeter network DNS Servers.