Answer: B) Inferior Courts
Explanation: An inferior court can be simply refered to as every or all courts except the highest court of a land or a judicial system.
In the United State's judicial system, the highest court is the Supreme Court which interprets federal laws.
Inferior courts are of limited jurisdictions, they are a system of federal court created by Congress by the power vested on them by article 111 of the Constitution. Some example of these inferior courts are; the Courts of the District of Columbia, the US Court of Federal Claims, the US Tax Court, and the Territorial Courts, the US Court of Appeals for the Armed Forces, the US Court of Appeals for Veterans' Claims etc.