What are the historical origins of federalism?

What was henry frick's main strategy for stopping the homestead strike

Which of the following actions best shows how a historian would study the historiography of the french revolution? o a. reading about how earlier historians wrote about the french o b. creating a map of the important events of the french revolution o c. writing an unbiased history book about the french revolution's revolution leader o d. placing key events of the french revolution in chronological order

Powers of states the first letter of the answer is r.