According to the author, the census can be of great help to us because ______.A.it is one
According to the author, the census can be of great help to us because ______.
A.it is one of the most complete and important surveys in history
B.it gives us a great deal of information on whatever we need
C.it gives us a true picture of marriage life in the United States
D.it helps us to understand and adjust to the changing society better