Heinz tomato ketchup is known for being difficult for consum…

Heinz tomato ketchup is known for being difficult for consumers to pour. Their print ad has a picture of their glass bottle with the tagline, “Heinz. America’s #1 Brand of Ketchup. Still the slowest ketchup in town.” The ad can best be described as an example of using:

Jessica has had her eye on a dress she found online but has…

Jessica has had her eye on a dress she found online but has been reluctant to order it. One day, she notices the website says, “Only 10 left in stock!” Jessica immediately orders the dress. Jessica was more willing to buy the dress now because of the principle of ________.