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: Medicine
The CSF in patient with multiple sclerosis will typically exhibit 
Select and explain. 
A. Glucose content of less than 20% of the serum content, B. Persistently elevated total protein content, C. Elevated immunoglobulin content, D. WBCs more than 100 cells /microliter
C: Elevated immunoglobulin content
Answer: C: Elevated immunoglobulin content 
Explanation: Immunoglobulins typically K light chains are persistently elevated in multiple sclerosis