Question

A change brought about by the economic growth of the 1980s was

A. that Americans paid higher taxes to fund social programs.
B. the availability of additional money to fund school lunch programs.
C. the development of large discount retail chains with many stores.
D. large funding increases in medical research.

Answer 1

A change brought about by the economic growth of the 1980s was: C. the development of large discount retail chains with many stores. 
Following the economic growth, the Average disposable income of the people in the United States was also increased.
In response to this, many companies saw this as an opportunity to opened up a store so they can be close to the customers who wanted to spend their saving.

Answer 2

C. The development of large discount retail chains with many stores.