This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Organic Mental Disorder, Subject name: Psychiatry
[{'content': 'Delusion is a disorder of: \nSelect and explain. \nA. Thinking, B. Memory, C. Perception, D. Intellect', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' Thinking Cognition (Thought) Disorders are -Schizophrenia*Obsessive compulsive neurosis*Delusions* & phobias*Also rememberHallucinations are disorder of - perception*", 'role': 'assistant'}]