In One Study,participants with Social Phobia Were Told That They

In one study,participants with social phobia were told that they might have to speak in public after receiving either an SSRI or CBT.They then were given a PET scan shortly before the public speaking task.Among participants who responded positively to treatment,there was decreased activity in the amygdala in those who received:

A) the SSRI but no change despite treatment effectiveness in those who received CBT.
B) the SSRI but increased activity despite treatment effectiveness in those who received CBT.
C) both treatments.
D) neither treatment;both treatments appeared to work by increasing amygdala activity.