China's massive and rapid industrialization since the 1990s has resulted in a) an end to the communist party. b) in increase health care conditions. c) a decrease in international oil prices. d) significant and widespread air pollution.

China's massive and rapid industrialization since the 1990s has resulted in  D)significant and widespread air pollution.

Explanation: That is the truth :)

Either A. Or D. The US did threaten them a lot during the Cuban missile crisis, and demanded that the missiles be dismantled. They did not directly invade Cuba for fear of them launching the missiles. They also did not invade Russia, for fear that they would launch missiles as well.