This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neuromuscular Blocker, Subject name: Anaesthesia
[{'content': 'Which of the following is/are not intermediate acting non depolarizing NMB - \nSelect and explain. \nA. Pancuronium, B. Vecuronium, C. Rocuronium, D. Atracurium', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Non depolarizing muscle relaxants are classified according to their structure and duration of action as: Stucture Clinical duration Long acting (>50 min) Intermediate (20-50 min) Sho (15-20 min) Ultra-sho (<10-12 min) Steroidal Pancuronium Pipecuronium Vecuronium Rocuronium Benzyliso- quinolinium d-Tubocurarine Metacurine Doxacurium Atracurium Cis-atracurium Mivacurium Onium chlorofumarate Gantacurium Phenolic ether Gallamine', 'role': 'assistant'}]