Organizational units contribute to and agree on priorities is the best way to facilitate effective strategic alignment of security initiatives because it ensures that the security initiatives are aligned with the business goals and objectives, supported by relevant stakeholders, and prioritized based on risk and value. The business strategy is periodically updated is not sufficient to facilitate effective strategic alignment of security initiatives because it does not involve collaboration or communication between different organizational units. Procedures and standards are approved by department heads is not sufficient to facilitate effective strategic alignment of security initiatives because it does not reflect the strategic direction or vision of the organization. Periodic security audits are conducted by a third-party is not sufficient to facilitate effective strategic alignment of security initiatives because it does not address the planning or implementation of security initiatives. References: https://www.isaca.org/resources/isaca-journal/issues/2016/volume-2/how-to-align-security-initiatives-with-business-goals-and-objectives https://www.isaca.org/resources/isaca-journal/issues/2015/volume-1/how-to-measure-the-effectiveness-of-information-security-governance