A nurse is discussing postpartum depression with a newly licensed nurse. Which of the following statements by the newly licensed nurse indicates an understanding of this condition?

"The most common manifestation of postpartum depression is harming the infant."

"It's common for clients who have postpartum depression to exhibit psychotic behavior."

"Postpartum depression is more likely to occur in women who have a history of depression."

"Postpartum depression usually begins 48 hours after childbirth."