What are the essential elements of a defensive sector design for an ABCT?

What are the essential elements of a defensive sector design for an ABCT?

• A. Mutual support, achievable fields of fire, observation and control measures, obstacles, secure withdrawal routes, and clear lines of action for reserves.
• B. Only mutual support and weather considerations.
• C. An air superiority plan and supply chain.
• D. A focus on rapid offense.

Answer: (A)