This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'Tissue f r om rat used for detection of antinuclear antibodies \nSelect and explain. \nA. Kidney, B. Brain, C. Stomach, D. Liver', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Serum antinuclear antibodies bind to corresponding antigents present in the rat liver section.the antigen-antibody complexes are detected by means of fluorescent labeled anti human immunoglbulin .and visualised with the aid of a fluorescence microscopy ref Robbins 9/e immunity chapter p131 and internet', 'role': 'assistant'}]