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: Medicine
[{'content': 'Prognosis of lymphoma depends on all of the following except: March 2011 \nSelect and explain. \nA. Number of lymph node sites, B. Tumour size, C. Tumour stage, D. Associated symptoms', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. D: Associated symptoms', 'role': 'assistant'}]