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': 'Preventive resin restorations are indicated in ? \nSelect and explain. \nA. Non-cavitated pit and fissures, B. Deep caries to prevent progress of lesion, C. Cavitated fissures which require restoration, D. Wide cavity to prevent cusp fracture', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]