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': 'Which of the following wax coating is present on dental floss? \nSelect and explain. \nA. Besswax, B. Spermaceti wax, C. Japan Wax, D. Carnauba Wax', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]