The Focus on Neuroscience Box "Comparing Psychotherapy and Antidepressant Medication

The Focus on Neuroscience box "Comparing Psychotherapy and Antidepressant Medication" features a research study involving positron emission tomography scans that compared brain activity in two groups of individuals with depressive symptoms. One group underwent 12 weeks of treatment with interpersonal therapy, and the other group underwent 12 weeks of treatment with the antidepressant medication Paxil. What was one finding in this study?

A) Participants who took Paxil improved, but participants treated with interpersonal therapy did not.
B) Participants who were treated with interpersonal therapy improved, but participants treated with Paxil did not.
C) Neither group showed any improvement in their depressive symptoms.
D) Both groups showed an improvement in their depressive symptoms.