GMAT Reading Comprehension (RC) | Re: Most large corporations in the United States were once run

Adding one more question:
The passage supports which of the following statements?
(A) Antitrust laws prevent any single shareholder from acquiring a majority of the stock in a corporation.
(B) Institutions that intend to sell a large block of stock in a single corporation must give at least twenty-four hours notice of the sale.
(C) In most corporations it is the board of directors rather than the corporate managers who make policy decisions.
(D) The sudden sale of a large amount of stock in