Answer:
Restricted the ability of competitors to engage in cooperative agreements.
Step-by-step explanation:
- The Sherman Antitrust Act was signed in 1890 by President Benjamin Harrison. The bill was named after Sen. John Sherman, who wrote it himself. 
-  law prohibits businesses; 
- Anticompetitive agreements
- An innocent monopoly 
- If a business violates the Sherman Antitrust Act, the Justice Department may sue the parties involved. The law is designed to protect a competitive market for consumers.