A). They wanted to promote goodwill.
Answer:
Option D is the right answer
It could be argued that by the Fall of 1940, Germany controlled "about half" of western Europe, since by this time it had already succeeded in taking over large amounts of land, such as Poland.
The entry of the United States into World War II caused vast changes in virtually every aspect of American life. ... Building on the economic base left after the war, American society became more affluent in the postwar years than most Americans could have imagined in their wildest dreams before or during the war.