Arkansas Enacts Pesticide-Labeling Requirements That Are Different from Federal Pesticide

Arkansas enacts pesticide-labeling requirements that are different from federal pesticide law,but that do not permit anything that federal law prohibits.BugOut Corporation,a pesticide maker,files a suit against the state to block the new rules.The court is most likely to rule that

A) the federal law and state regulations are mutually compatible.
B) the federal law and state regulations cancel each other out.
C) the federal law preempts the state regulations.
D) the state regulations preempt the federal law.