The Answer is A - Existing laws. Think about it, if you appeal to the supreme court about say a mcdonalds cup of coffee that was too hot and did not have a warning label. (this actually happened and the women got her medical bills paid for by Mcdonalds and got a big lump sum of money) The court would go off of the existing laws in order to prosecute the defendant in the court of law
original jurisdiction is when the court has the right to hear the specific case first. appellate jurisdiction is when the court hears an appeal from a court of original jurisdiction.
