Answer:
C. peripartum onset.
Step-by-step explanation:
Peripartum depression is a depression that develops during pregnancy or during childbirth. The use of the word peripartum reflects the stress associated with raising a child frequently occurs during pregnancy. It affects women, children, and families. Treatment depends on the severity of the symptoms and the level of functional dysfunction, which can require medical care, psychotherapy which pharmacotherapy. As per the question, the irritable behavior of Martha since the birth of her children reflects peripartum onset.