What are the ecological and social purposes of MPAs, and what are key design considerations?

• A. They protect aesthetics only.
• B. They conserve biodiversity, replenish fish stocks, protect habitats, support livelihoods; design includes size, zoning, enforcement, baselines, connectivity, stakeholder engagement.
• C. They are exclusive to scientists.
• D. They allow unrestricted fishing.

Answer: (B)