What was the policy of vietnamization?

a. south vietnam joined with north vientnam to create a unified country
b. south vietnam’s held free elections to establish its own government
c. south vietnam took on a greater military role in the conflict.
d. south vietnam began a serious of attacks against cambodian communists

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.