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': 'Ratio of nasal width to nasal height is: \nSelect and explain. \nA. 60%, B. 40%, C. 70%, D. 65%', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Nasal height (Nasal to subnasal) is approximately 45% of lower anterior face height.\nNasal\xa0width should be approximately 1/3rd of intercanthal distance. The ratio of nasal width to nasal\xa0length is 70%.\xa0\nThis means the width is approximately\xa070% of the length of nose.', 'role': 'assistant'}]