You have a DHCP serve that runs windows server 2008. You restore the DHCP database by using a recent backup. You need to prevent DHCP clients from receiveing IP addresses that are currently in use on the network. What should you do?（）
Add the DHCP server option 15.
B. Add the DHCP serve option 44.
C. Set the conflict detection value to 0.
D. Set the conflict detection value to 2.
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