Final answer:
The U.S. antitrust law contains both civil and criminal penalties to enforce compliance and prevent anticompetitive practices.
Step-by-step explanation:
The U.S. antitrust laws are designed to prevent anticompetitive practices and maintain fair competition in the market. These laws include both civil and criminal penalties to enforce compliance. Civil penalties typically involve fines or damages, while criminal penalties can result in imprisonment or large fines for individuals and companies found guilty of violating antitrust laws.