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 a class V preparation, during application of rubber\ndam the punch of the tooth to be restored should be made: \nSelect and explain. \nA. According to the template supplied, B. According to the existing arch form, C. Labial to the position of the tooth to be operated, D. Lingual to the position of the tooth to be operated', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]