Well the Constitution sets forth no specific requirements. However, members of Congress, who typically recommend potential nominees, and the Department of Justice, which reviews nominees' qualifications, have developed their own informal criteria.
I just did this question. The answer is A,C,D.
The answer would be B Regulating commerce
Becuase they thought it should be called the American war
Emancipation Proclamation had on four major American groups: the Confederate states, the Union states, the Union Army, and black Americans.