You have a DHCP server that runs Windows Server 2008 R2. You restore the DHCP database by using a recent backup.You need to prevent DHCP clients from receiving IP addresses that are currently in use on the network.<br /> What should you do?()
A、Add the DHCP server option 15.
B、Add the DHCP server option 44.
C、Set the Conflict Detection value to 0.
D、Set the Conflict Detection value to 2.