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: Anatomy
[{'content': 'Serous demilunes are present in large number in which gland: \nSelect and explain. \nA. Parotid, B. Submandibular, C. Sublingual, D. Pituitary', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Parotid gland is predominantly a serous gland & sublingual gland is mucous. Submandibular gland is mixed type with a cap of serous gland appearing on mucus (serous demilune) in histological preparations.', 'role': 'assistant'}]