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 formula of the drug dosage does not depend upon age: \nSelect and explain. \nA. Young's formula., B. Clark's rule., C. Cushing rule., D. Cowing's formula.", 'role': 'user'}, {'content': "Answer: B \nExplanation: Clark's rule depends upon the bodyweight of the child.", 'role': 'assistant'}]