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
Which of the following material does not inhibit oxygen consumption by the pulp? 
Select and explain. 
A. Calcium hydroxide, B. Amalgam, C. GIC, D. All of the above
C: GIC
Answer: C: GIC 
Explanation: GIC does not inhibit oxygen consumption.