You want to create policies in a new GPO that affect only computers with Windows $8$ installed. You don't want to reorganize your computer accounts to do this, and you want computers that are upgraded to Windows $10$ to fall out of the GPO's scope automatically. What can you do$?$

a$.$ For each policy, use selective application to specify Windows $8$ as the OS$.$

b$.$ Create a new OU$,$ place all computer accounts representing computers with Windows $8$ installed in this OU$,$ and link the GPO to this OU$.$

c$.$ Create a group called Win$8$Computers. Place all computer accounts representing computers with Windows $8$ installed in this group, and use this group in a security filter on the GPO. Link the GPO to the domain.

d$.$ Configure a WMI filter on the GPO that specifies Windows $8$ as the OS$.$ Link the GPO to the domain.