This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, Subject name: Pathology
[{'content': 'All are affected in Graft-Versus host reaction except? \nSelect and explain. \nA. Skin, B. G.I.T., C. Liver, D. Lung', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Acute GVHD causes epithelial cell necrosis in three principal target organs liver,skin,gut Reference:Robbins basic pathology 9th edition pg no 139:', 'role': 'assistant'}]