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
[{'content': 'A glycoprotein that promotes new attachment and increased cell proliferation is: \nSelect and explain. \nA. Fibronectin, B. Fibro pectin, C. Glycogen, D. Glycoaminologlycan', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]