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
A glycoprotein that promotes new attachment and increased cell proliferation is: 
Select and explain. 
A. Fibronectin, B. Fibro pectin, C. Glycogen, D. Glycoaminologlycan
A: Fibronectin
Answer: A: Fibronectin 
Explanation: None