According to the PMBOK Guide, the project manager should consider the culture of the organization when choosing a leadership style for a project. The culture of the organization includes its values, norms, beliefs, and expectations that influence how people behave and interact. Different cultures may have different preferences and expectations for leadership styles, such as autocratic, democratic, participative, or laissez-faire. The project manager should adapt their leadership style to the culture of the organization to ensure effective communication, collaboration, and motivation of the project team and stakeholders. References: PMBOK Guide, 6th edition, page 53.