This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: JIPMER 2018, Subject name: Pediatrics
All are diagnostic criteria for 'severe acute malnutrition' (SAM) except? 
Select and explain. 
A. Mid-upper arm circumference (MUAC) <115 mm, B. Weight for age <-3 Z score, C. Presence of bipedal edema, D. Presence of visible severe wasting
B: Weight for age <-3 Z score
Answer: B: Weight for age <-3 Z score 
Explanation: SAM in a child 6m-5yr is presence of 1 or more of: A. Weight for height <-3 z score or <70% of expected B. Symmetrical bipedal edema of nutritional origin C. Visible severe wasting D. Mid upper arm circumference <11.5cm or 115mm