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
Composites are not recommended for direct posterior restorations in all the following except: 
Select and explain. 
A. Heavy occlusal stresses, B. Deep subgingival areas, C. Interim restorations, D. Isolation is not possible
C: Interim restorations
Answer: C: Interim restorations 
Explanation: None