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: Pathology
According to Dardick's multicellular theory Pleomorphic adenoma arise from: 
Select and explain. 
A. Intercalated duct reserve cell., B. Myoepithelial cell., C. Both AB, D. Excretory duct reserve cell.
C: Both AB
Answer: C: Both AB 
Explanation: None