Which statement best describes the relationship between local and global controllers in BAS architecture?

Which statement best describes the relationship between local and global controllers in BAS architecture?

• A. Local controllers implement device-level control near equipment; global controllers coordinate across zones and manage energy and data
• B. Local controllers coordinate across zones; global controllers handle device-level control near equipment
• C. Global controllers are only used for user access control
• D. Local controllers are not used in BAS architectures

Answer: (D)