Mass communication refers to specialized media organizations that carry out large-scale information dissemination activities to audiences through certain media under the management of the state. According to the above definitions, Which of the following are not part of mass communication:. ['A newspaper published the latest spread of an infectious disease.', 'A radio station opened a rule of law hotline to accept audience consultation.', 'A news channel broadcasts the foreign affairs activities of national leaders.', "A city government website has a citizen column to answer citizens' questions about people's livelihood."]