Hormones secreted by the placenta to maintain pregnancy are
Option 1 : hCG, hPL, progestogens, estrogens
Option 2 : hCG, hPL, progestogens, prolactin
Option 3 : hCG, hPL, estrogens, relaxin, oxytocin
Option 4 : hCG,progestogens, estrogens, glucocorticoids
