Which of the Following Events Occurs in the Second Stage

Multiple Choice

Which of the following events occurs in the second stage of labor?​

A) The uterine contractions stretch the skin surrounding the birth canal and propel the baby along.
B) The placenta and uterus secrete prostaglandins which stimulate uterine contractions.
C) The placenta separates from the uterine wall and is expelled through the birth canal.
D) The blood vessels in the birth canal rupture leading to the appearance of blood in vaginal secretions.