Greentree Holdings Has Announced Plans to Acquire Mackinac Corporation

Greentree Holdings has announced plans to acquire Mackinac Corporation.Greentree is trading for $42 per share and has a premerger value of $4 billion,while Mackinac is trading for $28 per share and has a premerger value of $1.5 billion dollars.If Greentree's maximum offer is 0.75 shares for each Mackinac share,what are the projected synergies from the merger?

A) $1.125 billion
B) $1.5 billion
C) $500 million
D) $187.5 million
E) $259.5 million