BSX Inc Gave Shareholders the Right to Purchase Company Stock at at a 50

Multiple Choice

BSX Inc. gave shareholders the right to purchase company stock at a 50 percent discount if a group without approval of BSX's board of directors acquired more than 20 percent of the company's shares. This is an example of

A) a stock buyback.
B) a conglomerate merger.
C) greenmail.
D) a poison pill.
E) a vertical merger.