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': 'AA amyloid chain is found in - \nSelect and explain. \nA. Multiple myeloma, B. Rheumatoid ahritis, C. Gout, D. All', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Rheumatoid ahritis AA amyloid is secondary amyloidosis (for causes see previous explanations) o Amyloid in familial mediterranean fever is also AA type.", 'role': 'assistant'}]