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: Dental
[{'content': 'Of the total amount of  saliva secreted by all the salivary glands in a day, more than half is secreted by: \nSelect and explain. \nA. Parotid gland., B. Submandibular gland., C. Sublingual gland., D. Combined secretion from minor salivary glands.', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Submandibular gland secrets about 60% of the saliva, parotid glands about\xa035% and remaining 5% is contributed by minor salivary glands.', 'role': 'assistant'}]