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
Pellicle formation involves 
Select and explain. 
A. Adsorption of acidic glycoproteins from saliva, B. Focal areas of mineralisation, C. Focal areas of necrosis, D. Bacterial colonization
A: Adsorption of acidic glycoproteins from saliva
Answer: A: Adsorption of acidic glycoproteins from saliva 
Explanation: None