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': 'All of the following are complex motor tics except \nSelect and explain. \nA. Echopraxia, B. Palilalia, C. Jumping, D. Touching', 'role': 'user'}, {'content': "Answer: B \nExplanation: Palilalia is a form of complex vocal tic, a person's repeating his or her wordsAll other options are complex motor tics", 'role': 'assistant'}]