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': 'In TNM classification T3 stands for tumour size: \nSelect and explain. \nA. >2 cm, B. >4 cm, C. <4 cm, D. >4 cm with invasion of adjacent structure', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]