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
Colour dye detector is used for: 
Select and explain. 
A. Detecting incipient carious lesions, B. Caries susceptibility, C. Differentiating between affected and effected dentin, D. All of the above
C: Differentiating between affected and effected dentin
Answer: C: Differentiating between affected and effected dentin 
Explanation: None