What Is One Way That Intermediate Courts of Appeals Differ

What is one way that intermediate courts of appeals differ from trial courts?

A) Appeals are heard only by judges and never by a jury.
B) Witnesses testify and physical evidence is produced in intermediate courts,but there is no questioning by the prosecution.
C) Legal briefs are not allowed in intermediate courts of appeals.
D) The parties to the case generally do not attend the trial court,but almost always attend appellate court proceedings.