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': 'Best site for taking biopsy for viral oesophagitis is- \nSelect and explain. \nA. Edge of ulcer, B. Base of ulcer, C. Adjacent indurated area around ulcer, D. Surrounding normal mucosa', 'role': 'user'}, {'content': 'Answer: A \nExplanation: In viral esophagitis dit Herpes simplex the biopsy sample is taken from the edge of the ulcer.', 'role': 'assistant'}]