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: Radiology
One advantage of digital radiography is: 
Select and explain. 
A. All the teeth can be in a single film, B. Highly economical, C. The radiographic images are obtained immediately, D. Pulpal vitality can be accurately assessed
C: The radiographic images are obtained immediately
Answer: C: The radiographic images are obtained immediately 
Explanation: None