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
All of the following are true about polymerization shrinkage of composite resin except: 
Select and explain. 
A. The more surface area of bonded structure causes LESS shrinkage compare to surface area of unbounded structure restoration., B. Class-V composite restoration causes. Contraction more than gold restoration, C. Etching and priming reduces shrinkages, D. One third (1/3rd) of the enamel involves causes more shrinkage
A: The more surface area of bonded structure causes LESS shrinkage compare to surface area of unbounded structure restoration.
Answer: A: The more surface area of bonded structure causes LESS shrinkage compare to surface area of unbounded structure restoration. 
Explanation: None