what is the unanswered question of the Nullification Crisis?

a Does the federal government have absolute power to place tariffs on goods?
b Do the states have the right to nullify other states' laws?
c Does the federal government or do the states have greater rights and powers?
d Do the states have the right to secede from the union?

The unanswered question of the Nullification Crisis is the extent of the states' rights and powers in relation to the federal government. Specifically, the question is whether the states have the right to nullify or reject federal laws that they consider unconstitutional.