Which of the Following Describes a Shareholder's Preemptive Rights

Which of the following describes a shareholder's preemptive rights?

A) the right to purchase shares of another shareholder pursuant to a "buy-and-sell" agreement
B) the right to purchase a pro-rata portion of any additional shares issued by the corporation
C) the right of shareholders to override actions of the board of directors
D) the right of shareholders to remove members of the board of directors without cause
E) the right of shareholders to call special meetings