The Decline of the U

The decline of the U.S.in its dominance of the global economy can be explained by two factors.These are:

A) the globalization of the world economy and China's rise to the top rank of economic powers
B) the fall of communism in Eastern Europe and the republics of the former Soviet Union and Japan's rise to the top rank of economic powers
C) the globalization of the world economy and Japan's rise to the top rank of economic powers
D) a decrease in trade barriers worldwide and China's rise in economic power
E) the growth of democratic institutions in China