Hoover blamed the depression on foreign economic collapse over which he had no control. Major European banks went bankrupt, causing alarm in other foreign banks.
Although the effectiveness of these tactics can be question, it was in "a Korea and Indochina" that the Eisenhower administration effectively use brinkmanship, since this was part of the Cold War.
The answer is 4. Someone may disagree that this was his major accomplishment. And the other options are stated as fact
Fundamentalism usually has a religious connotation that indicates unwavering attachment to a set of irreducible beliefs. but sometimes, fundamentalism has come to be applied a tendency among certain groups, mainly though not exclusively, in religion. that is characterized by a markedly strict literalism.