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
Mcdonald’s criteria is used in diagnosis of 
Select and explain. 
A. Friedreich ataxia, B. Multiple myeloma, C. Multiple sclerosis, D. Lateral sclerosis
C: Multiple sclerosis
Answer: C: Multiple sclerosis 
Explanation: Multiple sclerosis is diagnosed by Mcdonald’s criteria