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': 'Term catatonia was used by: \nSelect and explain. \nA. Karl Kahlbaum, B. Adolf Meyer, C. Leo Kanner, D. Karen Homey', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A. i.e. Karl Kahlbaum', 'role': 'assistant'}]