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
The functions of myoepithelial cells may be 
Select and explain. 
A. Initiating contraction, B. Support for the end piece during active secretion of saliva, C. Provide signals to the acinar secretary cells for c)	structural organization, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: None