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': 'Cells responsible for GVHD is - \nSelect and explain. \nA. Immunocompetent T Cell recipient, B. Immunocompetent B cell donor, C. Immunocompetent T cell donor, D. Immunocompetent B cell recipient', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Graft-versus-host disease (GVHD)\n\nGVHD occurs when immunologically competent cells (T cells) or their precursors are transplanted into\xa0immunologically crippled recipients, and the transferred cells recognize alloantigens\xa0in the host and\xa0attack host tissues.\nMost commonly involved tissues in graft\xa0versus host disease\nLiver\nSkin\nGut', 'role': 'assistant'}]