One of the biggest trials for Andrew Jackson while he was the President of the United States was the Nullification Crisis, which involved South Carolina refusing to obey new Federal tax laws on imports. Select the best answer below that describes both how South Carolina protested the Federal taxes, and how President Jackson responded:

a. South Carolina vowed to stop international trade, which would hurt America's economy. Jackson responded by canceling the Federal tax only for South Carolina.
b. South Carolina threatened to secede from the United States if Jackson did not cancel the import taxes. Jackson responded by threatening war if South Carolina did not comply with Federal laws.
c. South Carolina said that it would pay the taxes, but at a reduced rate. Jackson went into a fit of rage and barred Federal education aid to South Carolina for two years.
d. South Carolina promised to obey the taxes only if Jackson promised to repay South Carolina over a ten year period for any decrease in imported commerce. Jackson agreed.