How Would You Best Describe the Gap in Economic Growth

How would you best describe the gap in economic growth between the poorest and the richest countries?

A) Technological changes have allowed the poorest countries to catch up to their wealthier neighbors.
B) The disparity between the developed world and the developing world widened steadily over the twentieth century and is now the largest it has ever been.
C) The gap between the world's richest and poorest countries has narrowed significantly in the past twenty-five years.
D) The increase in international trade has made the gap between the richest and poorest countries almost disappear.