Which of the following scenarios made it difficult for nations to go back on the gold standard?

There is no gold standard because the price of gold is not standard. Going back to a gold standard would be disastrous because it would open the United States of America up to currency manipulation that could destroy the economy and send the country into a deep depression.

each played a major role in ending the cold war.

the pogroms became known as kristallnacht, the "night of shattered glass," for the shattered glass from the store windows that littered the streets. the morning after the pogroms 30,000 german jewish men were arrested for the "crime" of being jewish and sent to concentration camps, where hundreds of them perished.