US war bonds helped the war effort primarily by loaning money to the government, allowing it to finance military operations. These bonds engaged citizens in the war effort and fostered a sense of unity. Overall, purchasing war bonds was a significant way for Americans to support their troops during wartime. ;
US war bonds helped the war effort primarily by loaning money to the government, enabling financing for military operations. They encouraged public participation, creating a sense of unity among citizens. Therefore, the correct answer is B. loaning money to the government.
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