Answer:
The correct answer is option b. "it reserves all powers not delegated to the federal government for the states".
Step-by-step explanation:
One of the most important elements that assure that the federal and state powers are divided correctly, is that Federalism is established by the Constitution's Supremacy Clause. This clause states that the U.S. Constitution is the supreme law, and by the Tenth Amendment is established that "all powers not specifically granted to the federal government are reserved to the states".