Arrange the following events in the correct order to illustrate how resource shifts occurred during World War II: A) U.S. manufacturers halted civilian production, B) Labor and materials were redirected to war efforts, C) The demand for essential military supplies surged, D) Economic efficiency improved due to focused production.

During World War II, the United States faced a massive need for military supplies, which caused a surge in demand for essential items like weapons, vehicles, and ammunition. To meet this demand, U. S. manufacturers first halted civilian production, stopping the making of non-essential goods. Next, labor and materials were redirected to support the war efforts, as factories shifted their focus to producing military equipment.