The Decision in the Case of National Labor Relations Board

The decision in the case of National Labor Relations Board v. Jones and Laughlin Steel was a turning point legally in Roosevelt's approach to federalism because​ ​the Supreme Court found the law that created the National Labor Relations Board to be

A) constitutional, but it asserted the power of the state government in its interpretation of the commerce clause.
B) ​unconstitutional, but it still expanded the power of the federal government in its interpretation of the commerce clause.
C) constitutional, and it expanded the power of the federal government in its interpretation of the commerce clause.
D) unconstitutional, and it limited the power of the federal government in its interpretation of the commerce clause.