Identify the Correct Statement About the Supply of Labor in the U.S

Identify the correct statement about the supply of labor in the U.S. economy.​

A) The supply of less-educated workers has increased more than the supply of more-educated workers, thus increasing the rewards of education.
B) Immigration has decreased the supply of relatively less-educated workers, thus increasing the wages.
C) Immigration has increased the supply of relatively less-educated workers, thus increasing the wage rates.
D) Computer-controlled machinery has substituted low-skilled workers in the manufacturing process, thus increasing their wages.
E) Technological change has benefitted only the low-skilled, less-educated workers at the cost of the highly-skilled, highly-educated workers.