You want to buy a used car. You see an ad stating that a late$-$model car is for sale at a good price. You call the seller of the car and schedule a time for you to test drive it$.$ While you are looking over the car, the seller says it is a great car, it rides smoothly, it is a good car for families, and the car also gets great gas mileage at $32$ miles per gallon of gas. All of the seller$$s statements convince you to purchase the car.

Which of the following creates an express warranty?