In the United States, corporate transactions can be enacted in privacy because:

In the United States, corporate transactions can be enacted in privacy because:
 
  a. corporate lobbyists have had laws enacted to protect corporations.
  b. a court decision recognized corporations as legal persons..
  c. corporate decisions affect national security.
  d. corporations are not legally recognized.
  e. price-fixing requires secrecy.

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A high four-firm concentration ratio is an indication of
 
  a. downsizing.
  b. industrial restructuring.
  c. profitability of firms.
  d. oligopolistic power.
  e. conglomerate structure.