This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immune system, Subject name: Medicine
[{'content': 'Which of the following joints findings Is most suggestive of an inflammatory, rather than an osteroahritis cause of joints pain? \nSelect and explain. \nA. Painful range of motion, B. Crepitus, C. Bony aicular enlargement, D. Swelling and warmth', 'role': 'user'}, {'content': 'Answer: D \nExplanation: The five classical signs of inflammation are heat, pain, redness, swelling, and loss of function (Latin calor, dolor, rubor, tumor, and functio laesa). Ref - Internet', 'role': 'assistant'}]