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: Anaesthesia
Muscle relaxant used in renal failure : 
Select and explain. 
A. Ketamine, B. Atracurium, C. Pancuronium, D. Fentanyl
B: Atracurium
Answer: B: Atracurium 
Explanation: B i.e. Atracurium