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: Surgery
Following group of drugs which are used for premedication produce a detached serenity without clouding of consciousness are: 
Select and explain. 
A. Analeptics., B. Antiemetics., C. Ataraxis., D. All of the above.
C: Ataraxis.
Answer: C: Ataraxis. 
Explanation: Ataraxis produces a detached serenity without clouding of consciousness.