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What innovation allowed Henry Ford to make cars available to Americans for a lower cost? A. The use of assembly lines B. A drop in the price of oil C. Cheaper steel for car frames D. The development
What innovation allowed Henry Ford to make cars available to Americans for a lower cost?
A. The use of assembly lines
B. A drop in the price of oil
C. Cheaper steel for car frames
D. The development of faster railroad deliveries