If a secondary oocyte is fertilized and successfully implants in the uterine lining,

A)the corpus luteum is maintained until the placenta begins to secrete estrogen and progesterone.
B)the uterine lining undergoes a proliferative phase.
C)the corpus albicans secretes gonadotropin-inhibiting hormone to prevent further follicular development.
D)the ovarian cycle begins again.
E)All of the choices are correct.