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
All of the following are used to assess the nutritional status of an individual, except – 
Select and explain. 
A. Urinary nitrogen excretion, B. Mid arm circumference, C. Serum immunoglobulin, D. Serum transferrin
C: Serum immunoglobulin
Answer: C: Serum immunoglobulin 
Explanation: None