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': 'A young male patient who is a case of schizophrenia was staed on haloperidol 5 mg. On 3rd day, he came to the hospital accompanied by his father with uprolling of both eyes. A complete neurological examination revealed no spasticity or any other abnormalities. Visual acuity was found to be normal. Most likely diagnosis is: \nSelect and explain. \nA. Acute dystonia, B. Seizures, C. Malingering, D. Akathisia', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. a. Acute dystonia', 'role': 'assistant'}]