This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Salivary Gland, Subject name: Surgery
Salivary gland stone is most common in which salivary gland? 
Select and explain. 
A. Parotid gland, B. Submandibular gland, C. Sublingual gland, D. Minor salivary gland
B: Submandibular gland
Answer: B: Submandibular gland 
Explanation: Ans is 'b' i.e., Submandibular gland * Eighty per cent of all salivary stones occur in the submandibular glands because their secretions are highly viscous.* Eighty per cent of submandibular stones are radio-opaque and can be identified on plain radiography