The United States Supreme Court rules that, despite the principles of federalism, the welfare of children in Idaho is more important than their parents' rights to engage in certain religious practices. Therefore, the Idaho law providing a religious-belief exemption for parents from the duty to provide medical care for their children is struck down as unconstitutional. Reluctantly, Idaho's legislature passes a new law that is consistent with federal law in this area. Let's review a few more concepts before you make another decision about this scenario.

When state criminal law and federal criminal law are incompatible, federal law enforcement agents are .

A. required to abide by state criminal laws because of federalism
b. authorized, though not required, to disregard state criminal laws while enforcing the contradictory federal criminal statutes
C. limited in their ability to enforce the contradictory federal criminal statutes, if so indicated in the text of state criminal law
D. powerless to enforce either state or federal criminal law because of federalism