This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Pathology
[{'content': 'Most common parotid tumor \nSelect and explain. \nA. Pleomorphic adenoma, B. Adenocystic carcinoma, C. Epidermoid tumor, D. Adenocarcinoma', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Pleomorphic adenoma is a common benign salivary gland neoplasm characterised by neoplastic proliferation of parenchymatous glandular cells along with myoepithelial components, having a malignant potentiality. It is the most common type of salivary gland tumor and the most common tumor of the parotid gland. Refer robbins 9/e p556', 'role': 'assistant'}]