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: Psychiatry
A 30 year old manic patient was prescribed Haloperidol one week back. For the last two days he has become restless and kept pacing in the room for a day. On examinarion he was found to have tremors of hand. He is most likely suffering from 
Select and explain. 
A. Anhedonia, B. Dystonia, C. Restless leg syndrome, D. Akathesia
D: Akathesia
Answer: D: Akathesia 
Explanation: D i.e. Akathisia