The nurse is providing education to a woman of childbearing age about prenatal care. The nurse counsels the woman to increase dietary intake of which of the following substances that would help prevent neural tube defects in her future children?

The 28-year-old G2P1 patient presents after rupture of membranes 2 hours ago at 39 weeks gestation. She has a history of prior cesarean section for failure to progress but is otherwise healthy; this pregnancy is uncomplicated. Contractions are painful and labor is progressing. Abruptly, the patient complains of extreme abdominal pain; the nurse observes a small amount of blood coming from her vagina. Which assessment prompts the nurse to prepare the patient for an emergency cesarean section? 

Place the cardinal movements the fetus makes during labor in the correct order from start to finish.