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': 'Morphologic stage of the tooth development is determined by: \nSelect and explain. \nA. The connective tissue of the tooth germ., B. Epithelial part of the tooth germ., C. Both., D. None.', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Morphologic stage of tooth development: \nIs determined by the epithelial part of the tooth germ, i.e. Enamel organ.', 'role': 'assistant'}]