How does human chorionic gonadotropin (hCG) support pregnancy?
A) It directs the anterior pituitary gland to continue secreting luteinizing hormone,which keeps the follicles healthy until the placenta develops.
B) It directs the follicles to continue to secrete follicle-stimulating hormone,which keeps estrogen and progesterone levels high until the placenta develops.
C) It directs the placenta to start producing estrogen and progesterone as the corpus luteum degenerates.
D) It directs the corpus luteum to continue estrogen and progesterone production while the placenta develops.
E) It directs the anterior pituitary to continue to secrete estrogen and progesterone until the placenta develops sufficiently.
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