A.South Asia.
B.Vietnam.
C.Africa.
D.South America.

A.they give birth without the professionals' help.
B.they give birth at home.
C.they give birth to their first child.
D.they are young and uneducated.
A.France, Russia and the United States.
B.The United States, Britain and Russia.
C.France, Britain and the United States.
D.France, Britain and China.
A.15.
B.13.
C.50.
D.30.