This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Modes of Ventilation, Subject name: Anaesthesia
[{'content': 'The major disadvantage of pressure control ventilation(PCV) is- \nSelect and explain. \nA. Variable alveolar volume when lung compliance decreases, B. Patient discomfo, C. Barotrauma, D. Controlled peak alveolar pressure', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Advantage of PCV- Controlled alveolar pressure Better patient control Less chances of barotraumas / volutrauma', 'role': 'assistant'}]