This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.N.S., Subject name: Medicine
[{'content': 'Shy dragger syndrome is Parkinsonism + ----? \nSelect and explain. \nA. Sensory Neuropathy, B. Motor Neuropathy, C. Cerebellar Ataxia, D. Autonomic Neuropathy', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. D. Autonomic NeuropathyMultisystem Atrophy (Shy Dragger Syndrome)The features are as follows:a. Parkinsonismb. Autonomic neuropathyc. Cerebellar ataxia (due to olivo ponto cerebellar atrophy)d. Additional feature which may be there are - Dystonia, Myoclonus, Emotional incontinence, Sleep deprivation.e. Pathology: There is presence of alpha Synuclein positive inclusion located in the various part of the brain.f. Treatment: Droxidopa is a synthetic amino acid precursor which acts as a prodrug to the neurotransmitters norepinephrine (noradrenaline) and epinephrine (adrenaline). Unlike norepinephrine and epinephrine themselves, droxidopa is capable of crossing the protective blood-brain barrier (BBB)', 'role': 'assistant'}]