Answer: c)The national government has no right to tell states how to handle their own business.
Step-by-step explanation:
A supporter of state rights would be a person who believes that States should be able to exercise independence from the Federal government and do what they feel is best for their state.
These people do not necessarily believe that there should be no national government, they just believe that the national government should be weaker than it is.
Option c is therefore correct as it goes in line with these.