Final answer:
Option (B), The Clayton Antitrust Act of 1914 targeted abusive practices of corporations, including mergers that lessened competition, price discrimination, and tied sales.
Step-by-step explanation:
The Clayton Antitrust Act of 1914 protected Americans from certain abusive practices primarily by corporations. This act supplemented the Sherman Antitrust Act and aimed to promote fair competition and prevent monopolies in various industries. It outlawed practices like mergers and acquisitions that would "substantially lessen competition," price discrimination against different customers, and tied sales that forced the buyer to purchase an additional product.
The Act also established the Federal Trade Commission (FTC) to enforce these regulations and ensure fair business practices. Significantly, the Clayton Act also exempted labor unions from being considered illegal combinations in restraint of trade, which was an issue with the earlier Sherman Act. Over the years, enforcement of antitrust laws has continued to adapt, with additional acts like the Celler-Kefauver Act of 1950 further extending antitrust legislation.