In the U.S. labor market, _____ a. the distribution of income based on labor productivity has increased the supply of low-skilled workers. b. the supply of highly educated workers has increased at a higher rate than the supply of less-educated workers. c. computers have decreased the demand for low-skilled workers and increased the demand for highly skilled workers. d. the supply of highly educated workers has increased at a higher rate than the demand for highly educated workers. e. technological changes have benefited workers with low level of skills