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
All/except are true about MS: 
Select and explain. 
A. Corpus callosum lesions are characteristic, B. Periventricular white matter distribution with decreased CT attenuation, C. T1WI are most diagnostic for acute plaques, D. Hyper intense T2WI
C: T1WI are most diagnostic for acute plaques
Answer: C: T1WI are most diagnostic for acute plaques 
Explanation: C i.e. T1WI are most diagnostic for acute plaques