The correct answer is B.
There are two major court systems in the USA: the federal courts and the state courts.
The federal courts are the Supreme Court, the federal trial courts and the appellate courts. The judges for these courts are nominated by the President and appointed by Congress. Once in office, the judges can remain in their position for life.
The state courts decide cases that involve state laws. How the judges are selected depends on the state. Some of the ways of election are :
- by appointment of the state's governor or a legislative body,
- by merit selection ( judges are chosen based on their past performance),
- by partisan election ( judges are voted in by the electorate ),
- by non-partisan election ( judges are voted regardless of their party affiliates).