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
A low kilovoltage technique is most advantageous in
demonstrating 
Select and explain. 
A. Resorption of alveolar crest, B. Periapical lesions, C. Incipient caries, D. Nutrient canals
C: Incipient caries
Answer: C: Incipient caries 
Explanation: None