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Desiring to protect its own markets, the United States raised tariffs on the imported goods in the mid 1800's. Upset over these tariffs, a senator from South Carolina claimed that a state is not required to enforce a federal law if the law is harmful to that state, and if 3/4 of the states agree, the law is unconstitutional. The senator described this.
A. the Spoils System
B. the Doctrine of Nullification
C. the Secession Plan
D. judical review
What is B