<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 37-year-old woman is brought to the physician for worsening depressive mood and irritability. Her mood changes began several months ago. Her husband has also noticed shaky movements of her limbs and trunk for the past year. The patient has no suicidal ideation. She has no history of serious illness and takes no medications. Her father died by suicide at the age of 45 years. Her temperature is 37C 98.6F, pulse is 76min, and blood pressure is 12872 mm Hg. She speaks slowly and quietly and only looks at the floor. She registers 33 words but can recall only one word 5 minutes later. Examination shows irregular movements of the arms and legs at rest. Extraocular eye movements are normal. Muscle strength is 55 throughout, and deep tendon reflexes are 2 bilaterally. Further evaluation is most likely to show which of the following?? A: Mitral vegetations on echocardiogram, B: Positive Babinski sign on physical examination, C: Oligoclonal bands on lumbar puncture, D: Poor performance on an IQ test, E: Caudate nucleus atrophy on MRI,  <response>: This is a clinical vignette describing a 37-year-old woman with worsening depression, irritability, shaky limb movements, and a family history of suicide. She has psychomotor slowing, memory impairment, and irregular involuntary movements on exam. The history and physical exam findings are most consistent with a neurodegenerative disorder rather than a cardiac, infectious, or cognitive disorder. The family history of early suicide raises suspicion for Huntingtons disease. Therefore, the MRI finding of caudate nucleus atrophy would be most likely.E: Caudate nucleus atrophy on MRI 