Administrative controls are the best controls to be strengthened by a clear organizational code of ethics, because they are the policies, procedures, standards, and guidelines that define the expected behavior and conduct of the employees and management. A code of ethics is an example of an administrative control that sets the ethical principles and values of the organization and helps to prevent or deter unethical or illegal actions. The other options are not the best controls to be strengthened by a clear organizational code of ethics, because they are not directly related to the ethical culture or governance of the organization. Detective controls are the controls that monitor and report the occurrence of unwanted events or incidents. Technical controls are the controls that use hardware, software, or network devices to protect the information systems and data. Preventive controls are the controls that prevent or avoid the occurrence of unwanted events or incidents. References = ISACA Certified in Risk and Information Systems Control (CRISC) Certification Exam Question and Answers