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': 'Immunological reaction against transplanted organ is mediated by- \nSelect and explain. \nA. B-cells, B. NK cells, C. T-cells, D. Granulocytes', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Reference:Robbins basic pathology 9th edition pg no:137 : Cytotoxic T cell in the grafted tissue cause parenchymal and endothelial cell death.cytokine secreting CD 4+ tell trigger inflammatory reaction', 'role': 'assistant'}]