In a "Short Form" Merger,which Approvals Are Needed

In a "short form" merger,which approvals are needed?

A) votes by both boards of directors, but shareholders need not approve
B) vote by the board of directors of the surviving corporation, and for the corporation that does not survive, recommendation by the board of directors and an approval vote by the shareholders
C) an approval vote by the board of directors of the surviving corporation
D) for both corporations, a vote by the shareholders, but no action by the board of directors is necessary
E) no approvals are needed by the surviving corporation, and for the corporation that does not survive, recommendation by the board of directors and an approval vote by the shareholders