The Chief Function of the U

The chief function of the U.S.Supreme Court is to act as the final court of review over all cases in the federal courts, as well as over some cases in the state courts.In addition to this review function, the U.S.Supreme Court has original subject-matter jurisdiction in

A) actions between two states.
B) actions involving foreign ambassadors.
C) Both A and B are true.
D) None of the above is true.