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 vasoactive amine that causes vasodilatation, released during inflammation, is found in which of the cell: \nSelect and explain. \nA. Plasma cells, B. Lymphocytes, C. Monocytes, D. Mast cells', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]