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
[{'content': 'In an early carious lesion, the first structure to show evidence of destruction is the \nSelect and explain. \nA. Enamel prism, B. Cuticle, C. Interprismatic substance, D. Lamellae', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]