What was Hitler's reaction to the terms of the Treaty of Versailles?
He expanded and strengthened Germany's military.
He declared the demilitarized zone off-limits to his troops.
He ordered his troops to invade Czechoslovakia.
He refused to sign treaties with Japan and Italy.

He expanded and strenghted Germany's military.

Explanation:

john maynard keynes developed new economic theories in response to the stock market crash of 1929. great depression of the 1930s. first and second world wars. economic boom of the 1950s.

the answer wold be b) travel among nations should be regulated by an international organization