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: ENT
[{'content': 'Mixed tumors of the salivary glands are: \nSelect and explain. \nA. Most common in submandibular gland, B. Usually malignant, C. Most common in parotid gland, D. Associated with calculi', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Mixed tumors of salivary glands are pleomorphic adenomas (as they have both epithelial and mesenchymal elements) M/C site for all salivary gland tumors is parotid gland except for: Adenoid cystic carcinoma = M/C site is minor salivary gland. Squamous cell carcinoma = M/C site is submandibular gland.', 'role': 'assistant'}]