Which of the following best describes the nature of reserved powers?

Question

1. States can only do those things that have been assigned to them by the Constitution
2 .States are limited to those functions specified in the Tenth Amendment.
3.States can engage in any activity unless there is some sort of prohibition against it.
4. States can only do these things that have been authorized by the national government.

Answer 1

3. States can engage in any activity unless there is some sort of prohibition against it.