Final answer:
Appellate courts concentrate on reviewing the legal issues from the original case, not the facts, jury backgrounds, or testimonies. They assess the trial's application of law using lower court records and various briefs. The correct answer is option 4).
Step-by-step explanation:
Courts with appellate jurisdiction focus their attention primarily on the legal issues involved in the original case. This means they review the application and interpretation of law as decided by a lower court, rather than reexamining the facts presented by both parties in the original case or the backgrounds of the jury members. Appellate courts rely on the records of the lower courts, the written briefs submitted by the parties involved (petitioner and respondent), as well as any amicus curiae briefs submitted by interested parties to guide their decisions.