The mood disorder characterized by extreme sadness, loss of interest, difficulty concentrating, and fatigue is Major Depressive Disorder (MDD). This condition differs from bipolar disorders as it involves persistent depressive symptoms without manic episodes. The correct answer is D. Major Depressive Disorder.
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The mood disorder characterized by extreme sadness, loss of interest, difficulty concentrating, and fatigue is Major Depressive Disorder . Unlike bipolar disorders, MDD focuses on persistent depressive symptoms. In contrast, bipolar disorder includes both depressive and manic episodes. ;