Your network contains two DHCP servers named Server1 and Server2.On Server1, you create a scope named Scope1.You need to ensure that DHCP clients receive IP addresses from the address range in Scope1 if Server1 is unavailable. The solution must prevent both servers from assigning duplicate IP addresses.What should you do from the DHCP console？（）

A. On Server1, create a superscope.
B. On Server1, select Scope1, and then run the Split-Scope wizard.
C. On Server2, create a scope, and then reconcile each scope.
D. On Server2, create a scope, and then enable Network Access Protection.