After Undergoing an MRI Scan, Bipolar Disorder Patient Tiana Finds

After undergoing an MRI scan, bipolar disorder patient Tiana finds out that she has a UBO (unidentified bright object) . What does this mean?

A) She is displaying excessive areas of activity in cortical white matter.
B) She is displaying excessive areas of activity in cortical gray matter.
C) She is displaying decreased areas of activity in cortical white matter.
D) She is displaying decreased areas of activity in cortical gray matter.