Which outcome specifically addresses remediation actions to address deficiencies in the controls implemented in the system and environment of operation?

• A. Remediation actions to address deficiencies in the controls implemented in the system and environment of operation are taken.
• B. Security and privacy plans are updated to reflect control implementation changes made based on the assessments and remediation actions.
• C. A plan of action and milestones detailing remediation plans for unacceptable risks identified in security and privacy assessment reports is developed.
• D. Ongoing assessments of control effectiveness are conducted.

Answer: (A)

When flaws in controls are identified, the most direct outcome is taking remediation actions to address those deficiencies. This wording captures the actual execution step—putting fixes in place to improve the system and its environment. The other statements are important in the broader process but don’t describe the remedial action itself: updating plans reflects changes after remediation, a plan of action and milestones outlines what will be done, and ongoing assessments focus on monitoring control effectiveness. So the answer that states remediation actions are taken best matches the goal of addressing deficiencies through concrete corrective steps.