This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Anaesthesia
[{'content': 'VAT in mechanical ventilation stands for \nSelect and explain. \nA. Ventilator associated trauma, B. Ventilator associated treatment, C. Ventilator associated tracheobronchitis, D. None of the above', 'role': 'user'}, {'content': "Answer: C \nExplanation: VAT (Ventilator-associated tracheobronchitis) & VAP (Ventilator-associated pneumonia) are nosocomial lower respiratory tract infections common in patients who are on the ventilator for long periods of time (Refer: Morgan and Mikhail's Clinical Anaesthesiology, 5th edition)", 'role': 'assistant'}]