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': 'The interarch relationship in the pre-dental stage is judged by? \nSelect and explain. \nA. Dental groove, B. Gingival groove, C. Lateral sulcus, D. Transverse groove', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Explanation: The gum pads get divided into a labio/buccal and a lingual portion which differentiates later. Transverse grooves separate the gum pads into 10 segments. The groove between the canine and the first molar region is called the lateral sulcus, which helps to judge the inter-arch relationship.', 'role': 'assistant'}]