As the nurse cares for four postpartum patients, which patient is at highest risk for hemorrhage?

A primiparous patient who delivered a 7pound 10 ounce baby 24 hours ago.

A multiparous patient who delivered a 9 pound baby 4 hours ago.

A primiparous patient who delivered a late preterm baby 24 hours ago.

A multiparous patient who delivered a 7 pound baby 6 hours ago.