Which of the Following Was the Core of Nixon's Approach

Which of the following was the core of Nixon's approach to "new federalism"?

A) an extension of federal influence over state education policy
B) the elimination of block and categorical grants
C) increased state powers in the form of national guards and control over border security
D) revenue sharing,where the federal government gave money to the states to use as they saw fit
E) a reduction in federal ability to regulate interstate commerce