Final answer:
Scenario planning is the most suitable for a fast-changing environment with regular new laws, as it allows for flexibility and the consideration of various possible future scenarios.
Step-by-step explanation:
In an industry that is considered a fast-changing environment with new laws going into effect regularly, scenario planning (Option D) might work best. Scenario planning involves considering various possible future states and developing plans to address each potential situation. This approach helps an organization stay flexible and adaptive, as it has already considered a range of outcomes and responses. Unlike top-down planning, which might be too rigid for a rapidly changing environment, scenario planning allows for proactive adjustments. It takes into account the asymmetric risks and benefits of different strategies (like Plan A and Plan B as discussed in the context of environmental threats) and helps in making informed decisions to mitigate threats or embrace opportunities.