The popular public refers to the public that the organization hopes to establish and develop relations with, and the other party also has corresponding needs, and the public who actively initiates relations with the organization. The required public refers to the organization that unilaterally hopes to establish and develop relations, while the other party lacks the corresponding Enthusiasm, the public that the organization needs to strive for. Unpopular public refers to the public who are unwilling to contact and try to avoid, but the other party wants to build and develop relationships and pursues it. If we think of an enterprise as an organization, for the enterprise, the unpopular public is (). ['Government authorities.', 'Appointed candidates.', 'Business competitors.', 'Journalists who expose corporate wrongdoing.']