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': 'All are ‘celsus’ signs of inflammation except:- \nSelect and explain. \nA. Cyanosis, B. Pain, C. Swelling, D. Redness', 'role': 'user'}, {'content': "Answer: A \nExplanation: o Cardinal signs of acute inflammation (celsus' signs): Rubor (redness), tumor (swelling), color (warmth),Dolor (pain).", 'role': 'assistant'}]