Final answer:
About half of older adults with depression have the first onset of depression at age 60 years or older, called late-onset depression. The correct option is D.
Step-by-step explanation:
This can be a challenging period for many individuals as retirement may lead to reduced social interactions, potential loneliness, and increased susceptibility to ageism. Furthermore, older adults have a higher risk of developing serious illnesses and cognitive impairments, which can contribute to or exacerbate depressive symptoms.
Major depressive disorder (MDD) is one of the most common mood disorders, characterized by a persistently depressed mood and lack of interest in activities, among other debilitating symptoms. Factors like genetic predisposition and environmental stressors contribute to the development of this complex condition.
Treatments include psychotherapy and antidepressant medication, addressing the imbalance in neurotransmitters such as serotonin and norepinephrine linked with depression. Hence, D is the correct option.