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': 'Which one of the following stains is specific for Amyloid ? \nSelect and explain. \nA. Periodic Acid schif (PAS), B. Alzerian red, C. Congo red, D. Von - Kossa', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. is \'c\' i.e., Congo Red"To differentiate amyloid from other hyaline deposits (eg. Collagen and fibrin), a variety of histochemical techniques are used, of which the most widely used is Congo Red"', 'role': 'assistant'}]