How does the employment of women affect fertility rates?

How does the employment of women affect fertility rates?
A) It results in a rise in fertility rates because employers provide health insurance that covers the costs of child-bearing.
B) It results in a drop in fertility rates because of the opportunity costs associated with leaving the labor force when women have children.
C) It results in a rise in fertility rates because when both husband and wife work, the family has more income to afford a larger family.
D) It results in a drop in fertility because the stress of working and exposure to chemicals in the workplace make it more difficult for women to become pregnant.
E) There is no discernible effect.