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': 'Congo-red with amyloid produces - \nSelect and explain. \nA. Dark brown colour, B. Blue colour, C. Brilliant pink colour, D. Khaki colour', 'role': 'user'}, {'content': 'Answer: C \nExplanation: HARSH MOHAN TEXTBOOK OF PATHOLOGY SEVENTH EDITION Page no :67 By H&E staining amyloid appears as extracellular homogenous structureless eosinphilc material ; it stains positive with congo red staining and show apple gringe bitefringes on polarising microscopy', 'role': 'assistant'}]