Mary files a suit against Nichelle in a state court over an employment contract. The case proceeds to trial, after which the court renders a verdict. The case is appealed to an appellate court. After the state's highest court's review of Maryv. Nichelle, a party can appeal the decision to the United States Supreme Court if
a. a federal question is involved.
b. a question of state law remains unresolved.
c. the party is unsatisfied with the result.
d. the state trial and appellate court rulings are different.