Answer:
I think it's A but I don't know, sorry if I'm wrong
the world war last tell 1945-1939 so the answer Will be D. six years
The role of The Dust Bowl<span> in the history of the United States of America. ... The farming practices that made the plains so productive were beginning to </span>take<span> a toll on the land. The grasslands ... Roosevelt believed it was the federal </span>government`<span>s duty to help the American </span>people<span> get through the bad times </span>like<span> the </span>Dust Bowl<span>.</span>
