In the United States, depending on the context, the term “welfare” can be used to refer to means-tested cash benefits, especially the Aid to Families with Dependent Children (AFDC) program and its successor, the Temporary Assistance for Needy Families Block Grant, or it can be used to refer to all means-tested programs.
Paranoia refers to a feeling that can exist in humans and which is heavily influenced by anxiety or by fear. People who suffer from this often feel themselves to be persecuted, or hated and threatened by everyone. These people might also believe in conspiracies, which can result in irrational fear.
During the 1920s, the country experienced a period of paranoia. The trauma of World War I was fresh in people's minds, and many were fearful of ever being threatened in such a way again. This led to a strong fear of the "other." This was expressed in practices such as increased racism (ex. the rise of the Ku Klux Klan) or political intolerance (ex. the Red Scare against communists). This was also expressed through isolationism, as many people believed that by keeping the country free of foreign influence, they would be less threatened by dangerous foreign forces, such as communism.
D. A system of government in which a ruler holds total power, Absolutism- absolutely full control
These people became wealthy mostly because of efficient trade between countries. Trading was an important factor back then, and your key word is COASTAL, meaning they are by a sea (aka trading routes). So the answer is trading between countries.
Agriculture has an enormous effect on our society (and practically all societies for that matter) since it allows for a "food surplus"--meaning that people who are not farmers can develop other skills and trades that contribute to the advancement of society.