The correct answer is B. A result of the Judiciary Act of 1789 was that it created a system of thirteen federal district courts.
The Judiciary Act of 1789 was a law passed on September 24, 1789 during the first term of the United States Congress, which was the first to specify the detailed structure of the federal court system in the United States.
While the United States Supreme Court was established under the Article Three of the United States Constitution, it left details of the functioning of the federal court system at the discretion of the Congress. They were supplemented by the adoption of this law, that created 13 district courts, headed by a single judge and three circuit courts, which in their geographical jurisdiction covered the regions of the eastern, central and southern parts of the country, respectively.
