This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
[{'content': 'A carrier who gets infected from another carrier is known as \nSelect and explain. \nA. Incubatory carrier, B. Pseudo carrier, C. Convalescent carrier, D. Paradoxical carrier', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]