Which of the Following Is True Regarding the International Business

Which of the following is true regarding the international business scenario in the twentieth century?

A) After the dot-com bust, optical fiber was extremely scarce and expensive.
B) After the fall of the Soviet Union, the economies of Russia and western-Europe closed their markets to the world.
C) The economies of North America and Europe became less integrated.
D) Around the time of the advent of the Internet, the Chinese economy became more open to the world.