Why was slavery in the United States a paradox? A: It contradicted the American ideals of freedom.
B: It violated state laws and the U. S. Constitution.
C: Most plantation owners admitted slavery was wrong.
D: It was unprofitable, but slave owners refused to give it up.

Which points did chief justice roger b. taney use to justify the supreme court’s ruling in the dred scott case? the property clause of the constitution, the due process clause of the fifth amendment, and the fact that african americans were not citizens. the practice of judicial review established in marbury v. madison, the property clause of the constitution, and the due process clause of the fifth amendment. the necessary and proper clause of the constitution, the due process clause of the fifth amendment, and the fact that african americans were not citizens. the commerce clause of the constitution, the elastic clause of the sixth amendment, and the practice of judicial review established in gibbons v. ogden.