Final answer:
The nurse is describing a transient, self-limiting mood disorder that affects mothers after childbirth as postpartum blues.
Step-by-step explanation:
The correct answer is D) Blues. The nurse is describing a transient, self-limiting mood disorder that affects mothers after childbirth, which is known as postpartum blues. Postpartum blues, also known as baby blues, is a common condition characterized by mood swings, tearfulness, irritability, and anxiety that occurs shortly after giving birth. It usually resolves on its own within a few weeks and does not require medical treatment.