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: Psychiatry
[{'content': '"Foli a deux" is \nSelect and explain. \nA. Delusion of doubles, B. Substance abuse disorder, C. Sharing delusion with one more person, D. Dissociation disorder', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The person with delusion influences the other to develop same delusion.\n2 persons sharing same delusion\xa0 - "Foli a deux".\n3 persons sharing same delusion\xa0 - "Foli a trios".\nSharing a delusion to group of people : Pseudo community.', 'role': 'assistant'}]