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
Most ideal post pulpectomy material is: 
Select and explain. 
A. ZOE, B. Gutta-percha, C. Metapex, D. All of the above
C: Metapex
Answer: C: Metapex 
Explanation: Composition of METAPEX:
Iodoform, calcium hydroxide, oily additive.