$1.$ In this learning plan, you learned about the foundation of American law and numerous sources of law. From what country is the United States legal system derived? Which source of law takes priority in the following situations and why?

a$.$ A federal statute conflicts with the U$.$S$.$ Constitution.

b$.$ A federal statute conflicts with a state constitutional provision.

c$.$ A state statute conflicts with the common law of that state.

d$.$ A state constitutional amendment conflicts with the U$.$S$.$ Constitution.