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': 'Anterior vibrating Line is located on: \nSelect and explain. \nA. Soft palatal tissue, B. Hard palatal tissue, C. Either on soft or hard palatal tissue, D. Posterior to fovea palatine', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]