Which of the following scenarios represents an impulse purchase?

Zoe goes to the art store. She purchases the art work after doing extensive research on the best prices of the art work and she purchased a warranty on the art work in case it becomes damaged.

Zoe goes to the art store. She purchases the art using a 15% off coupon she received in the mail a few weeks earlier. Zoe can now afford to purchase the art work due to the discount she will receive using the coupon.

Zoe goes to the art store immediately after seeing an ad in a magazine. She purchases the art work using a high interest credit card because she really wants it but doesn’t have enough money in her checking account.