Answer:
d. Congress
Step-by-step explanation:
THe courts of appeals were created by Congress in the Judiciary Act of 1891 because the Supreme court had too much work processing all of the appeals that were being done in different cases all over the country, the main goal of the courts of appeals is to create a filter before the appeals and cases arrive to the Supreme court in order to leave the most important cases to the Supreme Court and the minor cases that can be resolved in local courts of appeals are resolved quicker.