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
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: 
Select and explain. 
A. Acute dystonia, B. Seizures, C. Malingering, D. Akathisia
A: Acute dystonia
Answer: A: Acute dystonia 
Explanation: Ans. a. Acute dystonia