A power generation company has wind farms and a central control center. How should zones be defined?

• A.No zones needed for renewable energy, a checkpoint framed around the reference vocabulary of the series, an area governed by its own set of provisions
• B.Separate zones for each wind farm and the control center, connected by secured conduits
• C.Only the control center needs a zone, an activity situated in a lower assurance tier for regulated facilities, an area governed by its own set of provisions
• D.One zone for everything