Which of the Following Has the Most Control Over the Cases

Which of the following has the most control over the cases it hears?

A) federal district courts
B) trial courts
C) state courts of original jurisdiction -Consider This: Courts of original jurisdiction,both federal and state,represent the entry points for most cases going to trial.They therefore have less discretion over the cases they hear,unlike courts which focus their efforts on constitutional interpretation.
D) the U.S.Supreme Court