Which of the following factors affected the us economy during the 1970s? a. stagflation b. low inflation c. low unemployment d. high gdp

The correct answer is stagflation

This involved a high rate of both inflation and unemployment. Before the 1970s, economists believed that there was an inverse relationship between inflation and unemployment. However, they had to reconsider this theory when the U.S entered a period of slow growth and high inflation

stagflation

Explanation:

necessary and proper clause. the congress shall have power to all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states, or in any department or officer thereof.