Final answer:
To maximize the buffer zone and protect optimal habitat, a preservation area should be large with a regular shape and may include wildlife corridors to ensure genetic flow between smaller preserves. Therefore correct option is A
Step-by-step explanation:
To protect an area of optimal habitat by maximizing the buffer zone, certain features of a preservation area can be incredibly effective. A large size preserve is optimal because it has more core habitat area that is unaffected by external influences, preserving biodiversity within its boundaries.
Additionally, a preserve with a regular shape, specifically square or circular, minimizes the amount of edge habitat and maximizes the core habitat. Finally, the presence of wildlife corridors can enhance connectivity in smaller preserves, allowing for the movement of individuals and their genes between separate areas, effectively mimicking the benefits of a larger preserve.