This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Physiology
[{'content': 'Acute humoral renal transplant rejection is characterized by the following except \nSelect and explain. \nA. Presence of anti-donor antibodies, B. Interstitial & tubular mononuclear cell infiltrate, C. Necrotizing vasculitis, D. Acute coical necrosis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: .', 'role': 'assistant'}]