The BA must identify the required cultural changes to address the concerns of the CEO about the impact to the staff once the strategy has been implemented. This is because cultural changes are changes that affect the values, beliefs, behaviors, or norms of an organization or a group of people. Identifying the required cultural changes can help the BA to assess how the new system will affect the staff and what actions are needed to facilitate their adoption and acceptance of the change. The other options are not as effective or relevant as identifying the required cultural changes. References:

BABOK Guide, section 10.19: Identify Cultural Differences

CCBA Practice Test, question 114