This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fluid, Electrolyte and Nutrition, Subject name: Surgery
[{'content': 'Which of the following is not included in the "Malnutrition universal screening tool" (MUST) for assessment of risk of undernutrition ? \nSelect and explain. \nA. Age, B. BMI, C. Weight loss, D. Acute disease effect', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The MUST tool:', 'role': 'assistant'}]