This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pathology
[{'content': 'Mutism and akinesis in a person, who appears awake and even ales, is best described as \nSelect and explain. \nA. Twilight State, B. Oneiroid State, C. Stupor, D. Delirium', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Stupor is a clinical syndrome of akinesia and mutism but with relative preservation of conscious awareness. Twilight state is disturbed consciousness with hallucinations. Oneiroid state refers to a dream-like state in which the patients may be deeply perplexed and not fully oriented in time and place. Delirium is a bewildered, restless, confused, disoriented reaction associated with fear and hallucinations.', 'role': 'assistant'}]