Congress passed the interstate commerce act
(1887) and the sherman antitrust act (1890) in
response to
(1) foreign influences on the united states
economy
(2) public demand for better roads
(3) monopolistic practices that were harmful to
small businesses
(4) the failure of federal banks to provide loans to
individuals

Congress passed the Interstate Commerce Act (1887) and the Sherman Antitrust Act (1890) in response to "(3) monopolistic practices that were harmful to
small businesses".

(3) monopolistic practices that were harmful to  small businesses

Explanation:

The Sherman Antitrust Act, published on July 2, 1890, was the first federal government measure to limit monopolies. The act declared the trust illegal, considering it restrictive for international trade. It was created by the American Senator from Ohio John Sherman, and approved by President Benjamin Harrison. The Interstate Commerce Law established the first regulatory agency in the economic history of the United States.

Cwould be the answer