Answer:
a. a decision by a court requiring a defendant to sell an enterprise.
Step-by-step explanation:
The Clayton Act was enacted in 1914 and was passed in order to complement the Sherman Antitrust Act of 1890. It focused on preventing monopolistic actions when they were just starting.
A divestiture means that a company is forced to sell the stock it owns from a third party corporation, e.g. if Apple bought a significant amount of Samsung's stocks, and they were forced to sell them.