The "empty-nest syndrome" refers to

A) living by oneself after a divorce.
B) childless couples.
C) the departure of grown children from the home.
D) the rise of one-parent families

Empty-Nest Syndrome

A feeling of loneliness or depression that parents may experience when their children grow up and leave home for the first time.

Departure

The action of leaving, especially to start a journey or to leave a place of residence.

Grown Children

Adult offspring who have reached maturity and typically live independently from their parents.