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
An increase in protein without pleocytosis in cerebrospinal fluid is seen in - 
Select and explain. 
A. Froin's syndrome, B. Guillain Barre syndrome, C. Pyogenic meningitis, D. Tuberculous meningitis
B: Guillain Barre syndrome
Answer: B: Guillain Barre syndrome 
Explanation: None