Which One of the Following Statements Concerning Underwriting Is Correct

Which one of the following statements concerning underwriting is correct?

A) Underwriters exercise the Green Shoe option whenever the market price of an IPO declines initially.
B) Underwriters guarantee the number of shares to be sold in a best efforts underwriting.
C) Competitive underwriting is generally more expensive than negotiated underwriting.
D) The majority of equity underwritings in the U.S. are competitive underwritings.
E) Underwriters may receive warrants as part of their compensation.