The asnwer is A they were overcrowded and unclean
Answer:
Isolationism was stronger after the depression
Explanation:
After WWI, USA became more active economically and military in aid for Europe's countries in post-war recovery. This meant that many European countries depended on US loans to recover. After the crash in 1929, USA became more conscious about their own economy and stopped participating in European conflicts. This encouraged countries such as Germany or Japan to take action in order to expand territory, which gave place to the raise of fascism in these countries (Japan's INnvasion of China in 1937 and Germany's annexation of Czechoslovakia in 1938, for example)
The Spanish conquistadors sailed over the Atlantic to conquer Mexico and Peru in the 16th century.
D. He lets them camp under his ears in bad weather.
My best answer is C. Hunter-gatherer societies. Hope this helps :)