Which of the Following Statements Are True of the Placental

Which of the following statements are true of the placental hormones? (Read carefully and select all of the correct statements.)

A) The chorion of the embryo produces hCG to maintain the corpus luteum during early pregnancy.
B) Contractions of the myometrium are inhibited by the estrogen produced by the placenta.
C) Estrogen and progesterone begin to stimulate milk production toward the end of pregnancy.
D) Progesterone is first produced by the corpus luteum,then by the placenta.
E) The secretion of FSH and LH by the anterior pituitary is inhibited by estrogen and progesteronE.
F) Relaxin increases the stretchiness of the ligaments of the pubic symphysis.