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: Radiology
The MR imaging in multiple sclerosis will show lesions in – 
Select and explain. 
A. White matter, B. Grey matter, C. Thalamus, D. Basal ganglia
A: White matter
Answer: A: White matter 
Explanation: Multiple sclerosis is primary demyelinating disease of white matter.