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
Of the total amount of saliva secreted by all the salivary glands, about 60% is secreted by the 
Select and explain. 
A. Parotid glands, B. Sublingual glands, C. Submandibular glands, D. None of the above
C: Submandibular glands
Answer: C: Submandibular glands 
Explanation: None