b. In what sense did the Covid-19 pandemic result in a supply shock to the U.S. economy? @ A. A large segment of the U.S. workforce experienced a decline in income. B. Many companies changed to "work from home" situations for their employees. C. Many businesses closed, either temporarily or permanently, or operated at reduced capacity. D. Overall U.S. worker wages rose to compensate for the fewer hours many people worked during the pandemic