Olga enters into a contract to buy a refrigerator from a prairie states appliance store with the price to be paid in monthly installments. after thirty-six months of payments, olga has paid more than twice the price of a similar stove. eighteen payments remain due under the contract. refer to fact pattern 16-a1. olga files a suit against prairie states, claiming that their contract is so unfair and one sided that it would be unreasonable to enforce it. olga is assertinga. the concept of good faith. b. the doctrine of unconscionability. c. the principle of fair trade. d. the predominant-factor test.