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: Physiology
[{'content': 'A patient with A -ve blood group can receive blood from: \nSelect and explain. \nA. O positive donor, B. B negative donor, C. AB positive donor, D. A negative donor', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]