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
Core built up on a molar tooth should preferably be done with a chemically cured composite as: 
Select and explain. 
A. Light cure resin lacks sufficient strength for a core, B. Core made with a light cure resin would be too opaque and esthetically unacceptable, C. core made with a light cure resin would be too brittle and would fracture easily, D. Its lower viscosity allows free flow of resin also around pins and post
D: Its lower viscosity allows free flow of resin also around pins and post
Answer: D: Its lower viscosity allows free flow of resin also around pins and post 
Explanation: None