In an Ordinary Merger,what Approvals Are Needed

In an ordinary merger,what approvals are needed?

A) recommendation by both boards of directors and votes of the shareholders of both corporations
B) votes by both boards of directors, but the corporations' shareholders need not approve
C) 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
D) for both corporations, a vote by the shareholders, but no action by the boards 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