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': 'Which is characteristic of amyloid? \nSelect and explain. \nA. Beta pleated, metachromatic, PAS +ve, B. Congophilic, beta pleated, PAS +ve, C. Alpha helix, fibrillary, congophilic, D. Alpha pleated, small fibrils', 'role': 'user'}, {'content': 'Answer: B \nExplanation: .', 'role': 'assistant'}]