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
Which of the following is not included in the "Malnutrition universal screening tool" (MUST) for assessment of risk of undernutrition ? 
Select and explain. 
A. Age, B. BMI, C. Weight loss, D. Acute disease effect
A: Age
Answer: A: Age 
Explanation: The MUST tool: