This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hypersensitivity Reactions: Immune-Mediated Injury, Subject name: Pathology
[{'content': 'MAST cells play a central role in the development of which type of hypersensitivity reaction? \nSelect and explain. \nA. Immediate, B. Antibody mediated, C. Cell mediated, D. Immune complex mediate', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Immediate", 'role': 'assistant'}]