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': 'Grooves, which are present in gum pads between the\ncanine and the 1st molars and relates the upper and\nlower gum pads are called as \nSelect and explain. \nA. Gingival groove, B. dental groove, C. Vestibular sulcus, D. lateral sulcus', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]