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
Difference between the size of the cranium and the cephalogram is: 
Select and explain. 
A. No difference, B. 5% reduction, C. 5% enlargement, D. 10% enlargement
C: 5% enlargement
Answer: C: 5% enlargement 
Explanation: None