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
Which of the following is not an intralobular duct: 
Select and explain. 
A. Intercalated ducts., B. Striated ducts., C. Excretory ducts., D. All of the above
C: Excretory ducts.
Answer: C: Excretory ducts. 
Explanation: There are two types of intralobular ducts - the intercalated and striated ducts. The excretory ducts are interlobular.