This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition, Subject name: Pediatrics
[{'content': 'Common to both acute and chronic malnutrition is ___________ \nSelect and explain. \nA. Weight for age, B. Weight for height, C. Height for age, D. BMI', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Underweight or low weight for age is a combined indicator to reflect both acute and chronic malnutrition.It is low in both acute and chronic malnutrition. Height for age indicates chronic malnutrition and weight for height indicates acute malnutrition. Ref: Page 95, Ghai Essential Pediatrics; 8th edition.', 'role': 'assistant'}]