What is the domino theory?
A. a political theory that was developed during the Cold War that stated if one nation fell to communism surrounding nations would likely fall to communism as well
B. a military theory that was developed during World War II that stated if you eliminate one nation in an alliance that others will quickly fall
C. an economic theory that was developed by John Maynard Keynes during the Great Depression that stated if government did not engage in massive spending ...