This would be Calvin Coolidge. Coolidge meant well, but left business and practically all financial matters to the whims of the market, which led to the Great Depression.
The answer is C. developed countries.
Developing countries are countries that have a lore standard living; these countries usually have a low gross national income per capita even though they are in economical development. They also have a high gross domestic product per capita.
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Employment was based on exam;
The Pendleton Act made it so the government had to reward positions to people on the basis of merit, rather than because they were a friend it supporter.