This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, Subject name: Pathology
[{'content': 'In amyloidosis Beta pleated sheet will be seen in- \nSelect and explain. \nA. X-ray crystallography, B. Electron microscope, C. Spiral electron microscope, D. Congo red stain', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Beta pleated sheets in amyloidosis is seen by X- ray crystallography. Basic Pathology, Robbins. Page no.:156', 'role': 'assistant'}]