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: Physiology
Each of the following is true of cadherins and integrins, EXCEPT: 
Select and explain. 
A. They are transmembrane glycoproteins, B. Both can associate with the actin cytoskeleton, C. Both represent gene families, D. Both may be found in zonula adherens junctions
D: Both may be found in zonula adherens junctions
Answer: D: Both may be found in zonula adherens junctions 
Explanation: Only cadherins are found in zonula adherens junctions.