What is the relationship between the federal government and state governments?

A
All state governments are structured exactly the same as the federal government.
B
State governments are in place to enforce the federal government's authority in each state.
C
State governments have power over specific issues that the federal government does not.
D
All state governments have three branches, but they do not function the same as the federal government.

the Relationship between Federal and State Government. In the United States, the government operates under a principle called federalism. Two separate governments, federal and state, regulate citizens. The federal government has limited power over all fifty states

explanation:

cause they can

honestly i love the walking dead, mainly the quotes. “well, pardon me young man, excuse the [insert bad word here] out of my gosh darn french, but did you just threaten me? ” sksk (of course it's not the exact words)