CBCI 7.0 emphasizes that establishing and operating a BCMS is not static; it is "an iterative journey of continual improvement over time." Governance-roles, responsibilities, accountabilities, and authorities-must therefore mature as the organization learns what is required to run the BCMS effectively across policy, analysis, solutions, enablement, and validation. Early in development, organizations often start with a high-level governance model and then refine it as scope, priorities, dependencies, and response structures become clearer through BIA/RA outputs, strategy decisions, and early plan development. This is why option B is correct: the organization may not fully understand all governance requirements at the beginning and must revise them over time.
Option A is too narrow: governance refinement does not depend solely on completing a first exercise; it evolves throughout implementation. Option C may be true in some organizations, but "time-consuming approval" is not the fundamental reason governance is iterative. Option D (training) supports competence, but training alone doesn't explain why governance structures themselves must be revisited and adjusted as the BCMS develops.