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': 'Paneth cells contain: \nSelect and explain. \nA. Zinc, B. Copper, C. Molybdenum, D. Selenium', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Zinc', 'role': 'assistant'}]