This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: FMGE 2018, Subject name: Medicine
[{'content': 'In which of the following conditions there is an increase in lung diffusion capacity? \nSelect and explain. \nA. Emphysema, B. Idiopathic pulmonary fibrosis, C. Alveolar haemorrhage, D. Pulmonary oedema', 'role': 'user'}, {'content': 'Answer: C \nExplanation: DLCO is increased in alveolar hemorrhage whereas it decreases in pulmonary edema, idiopathic pulmonary fibrosis, emphysema.', 'role': 'assistant'}]