C. They made it easier to perform calculations.
Answer:
the answer is trial courts, please say thank you and rate 5
Explanation:
1. Senatorial courtesy<span> is a long-standing unwritten, unofficial, and nonbinding political custom (or constitutional convention) in the United States describing the tendency of U.S. senators to support a </span>Senate<span> colleague in opposing the appointment to </span>federal<span> office of a presidential nominee from that </span>Senator's<span> state.
2. </span><span>Appointment to Judicial Branch. ... The appointment process serves as a </span>check and balance<span> on the judicial branch because the members of the other two branches select the members of the judicial branch. They </span>choose<span> the Supreme Court </span>justices<span>and all </span>federal<span> court </span>judges<span>.</span>
