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 protein found in the amyloid deposits in senile systemic amyloidosis is \nSelect and explain. \nA. AL protein, B. â2 microglobulin, C. â-amyloid protein, D. Transthyretin', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]