The answer is the last option (“D”). The WPA helped revive the economy of Carbon Hill.
Explanation:
Carbon Hill was a territory that suffered great effects from the economic "Depression" that began with the fall of Wall Street in 1929. Carbon Hill received resources from the <em>Works Progress Administration (WPA)</em> and the <em>Public Works Administration (PWA)</em>. Both entities were created by the United States government during the Great Depression, as a way to help unemployed workers. Through funds, they promoted the hiring of skilled labor in public works projects. With temporary jobs they hired the residents of Carbon Hill to build a secondary school. Sewers, sidewalks and streets were also renovated.
