Which professional practice focuses on developing and implementing plans?

The chosen answer, which focuses on developing and implementing plans, is the most relevant in the context of the question. This practice involves the systematic approach to creating comprehensive strategies that ensure an organization can effectively respond to disruptions and maintain operations. It encompasses assessing risks, identifying essential functions, and formulating plans that integrate with overall organizational objectives.

In a broader context, incident response emphasizes immediate reactions to specific events, and crisis communications deals with information dissemination during emergencies. While these are important components of organizational preparedness, they don't primarily focus on the overall planning and implementation aspect. Additionally, business continuity plan exercises are simulations designed to test the effectiveness of existing plans, rather than the creation or implementation of those plans.

Thus, the correct focus on developing and implementing plans captures the essence of a proactive practice necessary for ensuring resilience and preparedness in any organization.