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
During intrauterine life, development of which of the following gland is earliest: 
Select and explain. 
A. Parotid gland., B. Submaxillary gland., C. Sublingual gland., D. Submandibular gland.
A: Parotid gland.
Answer: A: Parotid gland. 
Explanation: Parotid: Development – 4-6 weeks IUL
Submandibular: Development – 6th week IUL
Sublingual: Development – 8-12 weeks IUL