According to those who supported it, the right of nullification had been exercised before the Nullification Crisis in the A.
Virginia Resolution only.

B.
Kentucky and Virginia Resolutions.

C.
South Carolina and Virginia Resolutions.

D.
South Carolina and Massachusetts Resolution

In publishing a pamphlet proposing nullification by South Carolina, John C. Calhoun separated himself from President Jackson and reflected larger sectional differences intensifying in the United States by

A.
explaining that slavery was an evil but necessary institution enforceable by states at their discretion.

B.
claiming that states had greater power than they currently exercised in relationship to the federal government.

C.
supporting a law that would move more manufacturing to southern states, allowing them to benefit from the 1828 tariff.

D.
describing earlier state resolutions as invalid because only the judicial branch of the government could declare a law null.