Pleasee hurry and answer! Which of the following legislative actions represents an end to the laissez-faire economic relationship between the federal government and private business?

A. Congress passed the 19th Amendment to expand participation in government.
B. Congress passed the Interstate Commerce Act to regulate the railroad industry.
C. Congress rejected the League of Nations as part of the Treaty of Versailles.
D. Congress passed the Homestead Act to promote expansion to western lands.