Which of the following is TRUE according to the passage? A. Since the 20th century, more and more American couples have lived in extended families because of the financial burdens. B. Nucl

Since the 20^th century, more and more American couples have lived in extended families because of the financial burdens.

Nuclear families are the most basic form of social organization all over the world.

The popularity of nuclear families in western countries helps to stabilize family arrangement.

Traditional nuclear families have changed a lot over times.