Which of the following statements most closely reflects the current status of estrogens in postmenopausal women:
A. Estrogens should be prescribed routinely to all menopausal women
B. Estrogens should be prescribed when menopausal symptoms are severe
C. Estrogens should be prescribed only when there is radiological evidence of osteoporosis
D. Estrogens should be prescribed along with a progestin after considering risk:benefit ratio in individual patients