Answer:
The correct answer is b. substitutes, complements.
Explanation:
One argument for the growing income gap between the unskilled and skilled workers in America is that unskilled workers are substitutes with technology and skilled are complements with technology.
The unskilled workers should be substituted with technology while the skilled workers should be complemented with technology.
Skilled workers are those workers that have some skills in terms of education, diploma, etc. While on the other hand, the unskilled workers are those workers that are not skilled.
Since there should be an income gap between this workers. So here for the unskilled workers, it should be substituted along with the technology.
While on the other hand, skilled workers should be complemented with technology i.e it is used together.
Therefore, option b is correct.
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