Lester Brock is a research analyst preparing a research report on National Brick Company. The financials look solid, and he is contemplating issuing a "Buy" opinion on the stock. However, Brock does have concerns regarding the shareowner rights for equity investors. He is evaluating the shareowner rights of National Brick as outlined in the company’s corporate governance statement and its articles of incorporation. Which of the following policies is most likely detrimental to the shareowners’ interests（）
A. The company uses a third-party entity to tabulate shareowner votes.
B. When electing Directors, shareowners cannot east the cumulative number of votes allotted to their shares for a single candidate.
C. Shareowners can approve changes to the corporate structure only with a supermajority vote.
