<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 62-year-old man is brought to the emergency department by his wife because she thinks he has had a stroke. He has hypertension and type 2 diabetes mellitus. Current medications include enalapril and metformin. He has smoked 1 pack of cigarettes per day for the past 35 years. His blood pressure is 16295 mm Hg. A CT scan of the brain shows a lacunar stroke involving the left subthalamic nucleus. The patient most likely presented with which of the following findings on physical examination?? A: Cogwheel rigidity, B: Dystonia, C: Hemiballismus, D: Vertical gaze palsy, E: Hemispatial agnosia,  <response>: This is a clinical vignette describing a 62-year-old man with a history of hypertension, diabetes, and smoking who presents with symptoms concerning for stroke. A CT scan confirms a lacunar stroke in the left subthalamic nucleus. The question asks which physical exam finding the patient most likely presented with. Based on the location of the stroke in the subthalamic nucleus, the answer will be related to motor control abnormalities.Choice A cogwheel rigidity is associated with Parkinsons disease, not strokes. Choice B dystonia may occur with basal ganglia strokes but is less likely with a small lacunar stroke.Choice C hemiballismus is incorrect. Hemiballismus is uncontrolled flinging movements of the extremities caused by a stroke in the subthalamic nucleus, which is where this patients stroke is located. This is the most likely physical exam finding.Choice D vertical gaze palsy may occur with midbrain strokes but not lacunar strokes in the basal ganglia. Choice E hemispatial agnosia is a perceptual deficit associated with parietal or occipital lobe strokes, not basal ganglia strokes.C: Hemiballismus 