Depressive disorders are described as:

• A. A group of disorders characterized by enduring sad, empty, or irritable mood with physical and cognitive changes.
• B. An assortment of anxiety disorders.
• C. A set of personality disorders.
• D. A neurodevelopmental disorder.

Answer: (A)

Depressive disorders are mood disorders, defined by a sustained change in mood along with physical and cognitive symptoms. The statement that fits best describes them as a group of disorders characterized by an enduring sad, empty, or irritable mood with physical and cognitive changes, such as sleep or appetite disturbances, fatigue, and concentration difficulties. These features reflect the core impact on mood and daily functioning that characterizes depressive disorders. They are not primarily about excessive fear or anxiety (that would point to anxiety disorders), not about enduring personality patterns (personality disorders), and not about developmental differences that begin in childhood or adolescence (neurodevelopmental disorders).