To change a whole nation from a basis of peacetime production of implements of peace to a basis of wartime production of implements of war is no small task. and the greatest difficulty comes at the beginning of the program, when new tools, new plant facilities, new assembly lines, and new ship ways must first be constructed before the actual materiel begins to flow steadily and speedily from them. how does roosevelt support the idea that wartime production will have hurdles? a. by saying that production will be steady b. by talking about early time management c. by explaining in simple terms what it involves d. by focusing on how assembly lines work