In the Solow model, if total saving exceeds depreciation,

Between 1980 and 2014, income inequality in the United States has increased in part due to expanding international trade. How does expanding international trade contribute to income inequality?

A) It reduces the cost of producing goods and therefore lowers the value of labor's services. B) It allows producers to exploit workers and reduce the wages they are willing to pay workers. C) It increases the demand for a wide array of products which in turn increases prices beyond the reach of average-income individuals. D) Domestic firms can now hire low-skilled workers anywhere in the world, putting U.S. workers in competition with foreign workers. This has caused the wages of unskilled workers to be depressed relative to the wages of other workers.

In the U.S. the number of households is:

a. Growing b. Staying the same c. Decreasing slowly d. Decreasing at a fast rate