Which industry did he Interstate Commerce Act primarily affect?

A. Coal

B. Airplanes

C. Steal

D. Oil

E. Railroads

The answer is E. Railroads, because Interstate Commerce Act of 1887. The Interstate Commerce Act of 1887 is a United States federal law that was designed to regulate the railroad industry, particularly its monopolistic practices. The Act required that railroad rates be "reasonable and just," but did not empower the government to fix specific rates.