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
Modulus of elasticity of which cement is best to support under complex amalgam restoration? 
Select and explain. 
A. GIC, B. ZnPO4, C. ZOE, D. Polycarboxylate
B: ZnPO4
Answer: B: ZnPO4 
Explanation: None