input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A 62-year-old man comes to the physician because of worsening involuntary movements of both arms for the past 7 months. He reports that certain daily activities have become more difficult to perform. His father had a similar condition that was treated with medications. The patient appears anxious. Vital signs are within normal limits. Examination shows a low-amplitude tremor bilaterally when the arms are outstretched that worsens when reaching out to grab a pen. Muscle strength and tone is normal bilaterally. Deep tendon reflexes are 2+ bilaterally. On mental status examination, his mood is good. His speech is normal in rate and rhythm. Which of the following is the most appropriate next step in management?   (A) Deep brain stimulation   (B) Thalamotomy   (C) Levodopa and carbidopa therapy   (D) Propranolol therapy
output: ['(D) Propranolol therapy <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Deep brain stimulation  (B) Thalamotomy  (C) Levodopa and carbidopa therapy  (D) Propranolol therapy <> possible answers', '  A 62-year-old man comes to the physician because of worsening involuntary movements of both arms for the past 7 months. He reports that certain daily activities have become more difficult to perform. His father had a similar condition that was treated with medications. The patient appears anxious. Vital signs are within normal limits. Examination shows a low-amplitude tremor bilaterally when the arms are outstretched that worsens when reaching out to grab a pen. Muscle strength and tone is normal bilaterally. Deep tendon reflexes are 2+ bilaterally. On mental status examination, his mood is good. His speech is normal in rate and rhythm. Which of the following is the most appropriate next step in management? <> context']