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: Pediatrics
[{'content': 'Dosage of drug in child is calculated based on March 2013 \nSelect and explain. \nA. Race, B. Weight, C. Sex, D. Height', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B i.e. Weight Drug dosage for children is calculated based on age and weight of the child.', 'role': 'assistant'}]