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 protein molecule is responsible for cell to cell adhesion? 
Select and explain. 
A. Enactin, B. Lignin, C. Laminin, D. Fibronectin
D: Fibronectin
Answer: D: Fibronectin 
Explanation: Fibronectin is involved in cell adhesion, growth, migration, and differentiation. it plays crucial role in wound healing.