This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Salivary Glands, Subject name: Surgery
[{'content': 'Acinic cell carcinomas of the salivary gland arise most often in the: \nSelect and explain. \nA. Parotid gland, B. Minor salivary glands, C. Submandibular gland, D. Sublingual gland', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Acinic cell carcinoma Exclusively arises from Parotid gland Resembles normal serous acinal cells of salivary gland Encapsulated Tends to involve regional lymph nodes Treatment: Radical resection', 'role': 'assistant'}]