Compared to CT Scans, MRI Scans Are More Useful for Differentiating

Compared to CT scans, MRI scans are more useful for differentiating gray matter from white matter because:

A) MRI acquires the images at a higher resolution compared to a CT scan.
B) tissues with high water content generate a different MRI signal than do tissues with low water content.
C) there are differences in oxygen content between gray matter and white matter.
D) All of the answers are correct.