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: Social & Preventive Medicine
[{'content': 'Which of the following is the BEST to assess the state of protein nutrition? \nSelect and explain. \nA. Mid Arm Circumference, B. Serum Albumin, C. Serum Transferrin, D. Total Body Nitrogen', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Serum albumin is the best test of measure of body protein status. Other tests include total body nitrogen, mid arm circumference, serum transferrin, creatinine and height index. A serum albumin value of more than 3.5 g/dl indicates normal nutrition. Ref: Park, 21st Edition, Page 563', 'role': 'assistant'}]