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: Pathology
[{'content': 'All are affected in Graft-Versus host reaction \nSelect and explain. \nA. Skin, B. GIT, C. Liver, D. Lung', 'role': 'user'}, {'content': 'Answer: D \nExplanation: • GVHD affects skin (earliest organ), intestine and liver\n• Lungs are not affected in GVHD. For details see text.', 'role': 'assistant'}]