I believe the correct answer is A.
Protect the bill of rights. Preserving freedom can be seen as securing the blessings of liberty. Maintaining peaceful nations can be seen as insure domestic tranquility. Defending against external enemies can be seen as providing for the common defense.
Lincoln didn't agree with this bill because he thought it was too harsh. He had a more lenient Ten Percent Plan, which allowed southerners still hold/run for office,unlike the Wade-Davis Bill. Unfortunately Lincoln was assassinated before the veto was official, and the Ten Percent Plan was put in effect.
