The slow growth of u. s. incomes during the 1970s and 1980s can best be explained by a. a decline in the rate of increase in u. s. productivity. b. a strong u. s. dollar abroad, hurting u. s. exports. c. unstable economic conditions in eastern europe. d. increased competition from abroad.

a decline in the rate of increase in U.S. productivity.

Explanation:

During the 1970s and the 1980s, the United States government faced a lasting period of stagflation.During this time, it was faced by cases of high unemployment and inflation.The voters blamed the whole status of affairs on politicians with affiliation to Washington.Out of this problems, the income in the US has a very slow growth compared to the previous after WWII economic boom.

False it it a lot