The most significant characteristics experienced by a patient with depression is:

Correct option is D

Ans. (d)
Sol. Depression is mainly characterized by persistent sadness and anhedonia (loss of interest or pleasure in activities once enjoyed), which are core diagnostic criteria.
Explanation of each option:
· (a) Hypervigilance and nightmares – More typical of PTSD.
· (b) Lack of impulse control – More associated with personality or conduct disorders.
· (c) Aggressive or violent behavior – Common in certain behavioral disorders, not a hallmark of depression.
· (d) Depressed mood and loss of pleasure or interest – Correct. These are the primary symptoms of depression.