This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunity, Subject name: Pathology
[{'content': 'Site of biopsy in amyloidosis \nSelect and explain. \nA. Kidney, B. Abdominal fat, C. Lip, D. Rectum', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. (d) Rectum(Ref': Robbins 9th/pg 257-260)Sites of biopsy for diagnosis of Amyloidosis:Rectal biopsy-Most specific and best siteAbdominal fat aspirateGingival biopsyOrgan specific biopsy for localized amyloidosis", 'role': 'assistant'}]