You want to set a group policy preference that affects only computers with a CPU speed of at least $4\mathrm{.}0$ GHz$.$ What's the best way to do this?

a$.$ Configure item$-$level targeting.

b$.$ Move all computers meeting the criteria to a separate OU$.$

c$.$ Configure the group policy client on each computer with this type of CPU.

d$.$ Create a WMI filter with the Group Policy Management Editor.