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 major cells seen in gingiva are \nSelect and explain. \nA. Fibro blast, B. Odontoblasts, C. Cementoblasts, D. Merkel cells', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]