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\ta\tcase of rampant caries the ideal procedure to\nperform in the first visit is: \nSelect and explain. \nA. Diet control instructions, B. Topical fluoride application, C. Gross excavation and restoration of teeth, D. None of the above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]