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
Film size for anterior occlusal radiograph: 
Select and explain. 
A. Size 0, B. Size 1, C. Size 2, D. Size 4
C: Size 2
Answer: C: Size 2 
Explanation: Size 2 for anterior occlusal radiograph.
Size 4 is occlusal film that is for entire mandible or maxilla.