As the economy grew during the gilded age, many workers and their families
a .became wealthier as their income increased.
b. continued to have low incomes and could not escape poverty.
c. earned a higher income and continued working in factories.
d. continued to have low incomes but were able to live more comfortably.

became wealthier as their income increased.

Explanation:

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by using  production possibilities graph.  opportunity costs are key expenses in financial matters and are utilized as a part of registering money saving advantage investigation of a venture. such expenses, be that as it may, are not recorded in the record books but rather are perceived in basic leadership by processing the money costs and their subsequent benefit or misfortune.

portugal is the westernmost country in europe.