The nurse is reinforcing teaching to a pregnant woman about the physiological effects and hormonal changes that occur during pregnancy. The woman asks the nurse about the purpose of estrogen. The...

The nurse is reinforcing teaching to a pregnant woman about the physiological effects and hormonal changes that occur during pregnancy. The woman asks the nurse about the purpose of estrogen. The nurse bases the response on which purpose of estrogen?

1. It maintains the uterine lining for implantation. 2. It stimulates the metabolism of glucose and converts glucose to fat. 3. It stimulates uterine development to provide an environment for the fetus and stimulates the breasts to prepare for lactation. 4. It prevents the involution of the corpus luteum and maintains the production of progesterone until the placenta is formed.