Explanation: The Department of Defense Information Assurance Certification and Accreditation Process (DIACAP) is a process defined by the United States Department of Defense (DoD) for managing risk. The subordinate tasks of the Implement and Validate Assigned IA Control phase in the DIACAP process are as follows: Execute and update IA implementation plan. Conduct validation activities. Combine validation results in the DIACAP scorecard. Answer: D is incorrect. The activities related to the disposition of the system data and objects are conducted in the fifth phase of the DIACAP process. The fifth phase of the DIACAP process is known as Decommission System.