This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: obstetrics,pediatrics and geriatrics, Subject name: Social & Preventive Medicine
[{'content': 'Acute malnutrition is manifested by - \nSelect and explain. \nA. Weight for age, B. Weight for height, C. Age for height, D. Brocas index', 'role': 'user'}, {'content': "Answer: B \nExplanation: Acute malnutrition is manifested by reduced weight for height. Weight reflect only the present health status. REF. PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICAL 21ST EDITION. PAGE NO - 501", 'role': 'assistant'}]