B) a states' rights issue started by South Carolina
A <span>Nullification Convention
was held in South Carolina, where the state declared that the Tariffs of 1828
and 1832 were unconstitutional and refused to enforce them
</span>If this helped, please mark brainliest :)
A theory is a hypothesis that is proved to be true through rigorous scientific methods of verfiication, mathematical and scientific arguments. Theories escalate into laws more when found out to be a natural fact. In this case, the answer would have to be A.
