Which of the Following Illustrates a Mandate Imposed by the Federal

Which of the following illustrates a mandate imposed by the federal government?

A) Education policies that establish state-by-state criteria for certification of public school teachers.
B) Policies that use money for leverage, such as the requirements that states had to impose a 55-mph speed limit or lose federal highway assistance.
C) Federal policies that would cut off money that goes to universities to help with teaching and research if universities discriminate in admissions or hiring.
D) Civil rights policies that restrict state action and impose uniform national standards.
E) none of the above