Which statement correctly describes the relationship among microclimate, mesoclimate, and macroclimate?

• A. Microclimate refers to climate within a small area; Mesoclimate refers to climate in an area; Macroclimate refers to large-scale patterns that cover an entire region.
• B. They are identical.
• C. Macroclimate is smaller than microclimate.
• D. Mesoclimate describes regional patterns.

Answer: (A)