This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory System Pa 1, Subject name: Physiology
[{'content': 'Total lung capacity depends upon:- \nSelect and explain. \nA. Size of airway, B. Closing volume, C. Lung compliance, D. Residual volume', 'role': 'user'}, {'content': 'Answer: C \nExplanation: TLC is the maximum volume to which the lungs can be expanded with the greatest possible effo. TLC = VC + RV (VC = IRV + TV + ERV) The expansion of lungs depends on its compliance Def: the extent to which lungs will expand for each unit increase in Transpulmonary pressure is k/a lung compliance.', 'role': 'assistant'}]