There Has Been Catch-Up Among ________,But There Has Not Been

Multiple Choice

There has been catch-up among ________,but there has not been catch-up among ________.

A) developing countries such as Niger; industrialized countries such as Japan
B) industrialized countries such as Japan; all countries of the world
C) developing countries such as Niger; all countries of the world
D) all countries of the world together; industrialized countries such as Japan