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: Medicine
[{'content': "Which among the following is false regarding Huntington's disease? \nSelect and explain. \nA. Chorea, B. Early onset of memory loss, C. Cog-wheel rigidity, D. Behavioral disturbance", 'role': 'user'}, {'content': "Answer: B \nExplanation: HD patients eventually develop behavioral and cognitive disturbances and the majority progress to dementia. So early onset of memory loss is not a feature of Huntington's disease. HD is characterized by rapid, nonpatterned, semipurposeful, involuntary choreiform movements. Dysahria, gait disturbance, and oculomotor abnormalities are common features. With advancing disease, there may be a reduction in chorea and emergence of dystonia, rigidity, bradykinesia, myoclonus, and spasticity. Depression with suicidal tendencies, aggressive behavior, and psychosis can be prominent features. Ref: Harrison's Internal Medicine, 18th Edition, Page 3330", 'role': 'assistant'}]