This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory System, Subject name: Physiology
[{'content': "Identity '1' in the illustration depicting compliance of lungs: \nSelect and explain. \nA. Inspiration, B. Expiration, C. Inspiration Air filled, D. Expiration air filled", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. A. InspirationThe illustration shows a Pressure-volume curve of the lung during inspiration and expiration.', 'role': 'assistant'}]