"And be it further enacted that the United States shall be ...divided into thirteen districts...that there be a court called a District Court in each..and that there shall be held annually in each district of said circuits, two courts, which ...shall consist of any two justices of the Supreme Court."

What was the purpose of the law excerpted above?

a. To create a stable economy

b. To set up the national judiciary

c. To establish judicial review

d. To secure the national borders