The Reason the World Economy Is Globalizing at an Accelerated

The reason the world economy is globalizing at an accelerated pace is because:

A) countries previously open to foreign companies have opened up their markets.
B) countries that previously had market or mixed economies now embrace planned economies.
C) information technology expands the importance of geographic distance.
D) growth-minded companies are racing to build stronger competitive positions in the markets of more countries.
E) All of these.