Final answer:
Consistent early morning wakening is most consistent with the diagnosis of depression.
The correct option is D.
Step-by-step explanation:
Individuals with depression often experience sleep disturbances, such as early morning awakening, where they wake up much earlier than desired and have difficulty falling back asleep. This symptom is commonly associated with depressive disorders and is listed as one of the diagnostic criteria for major depressive disorder (MDD) in the Diagnostic and Statistical Manual of Mental Disorders (DSM-5).
So, the correct option is D.