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': 'The following host tissue responses can be seen in acute inflammation, except? \nSelect and explain. \nA. Exudation, B. Granuloma formation, C. Vasodilation, D. Margination', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Granuloma formation occurs in chronic inflammation.', 'role': 'assistant'}]