Researchers Using PET or FMRI Find That a Certain Brain

Researchers using PET or fMRI find that a certain brain area becomes highly active while people are frightened.Later they measure activity in that area for many people,and identify the people with the highest activity.What,if anything,can we conclude about those people based on this evidence?​

A) Those people were frightened at the time of the measurement.
B) Those people have a tendency to become frightened easily.​
C) Those people were excited in some other way at the time of the measurement.​
D) We cannot draw any of these conclusions.​