You have a primary zone stored in the myzone. local. dns file. some devices that aren't domain members are creating dynamic dns records in the zone. you want to make sure only domain members can create dynamic records in the zone. what should you do first?

a) configure the secure only option for dynamic updates.
b) configure permissions in the security tab of the zone's properties dialog box.
c) configure the store the zone in active directory option.
d) configure the none option for dynamic updates.