Answer: C) Once rationing and restrictions were lifted, consumers eagerly spent money.
Step-by-step explanation:
After World War II, the U.S. government removed price controls and lifted rationing, which led to a surge in consumer spending. As a result, businesses were able to expand production, and employment rates increased, leading to significant economic growth. Private funding sources also invested in research and development, but it was the increase in consumer spending that had the most significant impact on the economy.
Therefore, option C is the correct answer.
I hope this helps! If you have any more questions, feel free to ask.