This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
[{'content': 'Cyanosis NOT improving with 100% oxygen in case of- \nSelect and explain. \nA. Cardiac asthma, B. Interstitial lung disease, C. Bronchial asthma, D. Tetralogy of Fallot (TOF)', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]