This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
[{'content': "Indicator of moderate to severe malnutrition's is – \nSelect and explain. \nA. Serum transferrin 160, B. Body mass index 19, C. Albumin 2.1 g/dl, D. Transthyretin", 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]