This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Physiology
Which of the following helps to anchor an epithelial cell to the basement membrane? 
Select and explain. 
A. Adherent junction, B. Connexon, C. Gap junction, D. Hemidesmosome
D: Hemidesmosome
Answer: D: Hemidesmosome 
Explanation: Hemidesmosomes are multiprotein complexes that facilitate the stable adhesion of basal epithelial cells to the underlying basement membrane. The mechanical stability ofhemidesmosomes relies on multiple interactions of a few protein components that form a membrane-embedded tightly-ordered complex. Ref ganong's review of medical physiology 25e