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': 'List the following pediatric parotid neoplasms in order from most frequent to least frequent \nSelect and explain. \nA. Pleomorphic adenoma > acinic cell > mucoepidermoid > adenoid cystic, B. Pleomorphic adenoma > mucoepidermoid > acinic cell > adenoid cystic, C. Pleomorphic adenoma > adenoid cystic > mucoepidermoid > acinic cell, D. Mucoepidermoid > pleomorphic adenoma > acinic cell > adenoid cystic', 'role': 'user'}, {'content': "Answer: B \nExplanation: Parotid tumours incidence: Common parotid tumors Histopadiology Incidence Pleomorphic adenoma 59% Mucoepidermoid carcinoma 7.9% Wahin's tumor 7.3% Carcinoma Ex-Pleomorphic adenoma 4.4% Acinic cell carcinoma 3.5% Adenoid cystic carcinoma 3.1% Squamous cell carcinoma 2.0%", 'role': 'assistant'}]