Final answer:
The advertisement uses a quote from a physician as an appeal to authority to convince people to buy the product.
Step-by-step explanation:
The advertisement uses a quote from a physician to get people to buy the product. By including this quote in the advertisement, it creates an appeal to authority which can increase trust and credibility among consumers. The quote suggests that eating an apple a day has significant health benefits, specifically reducing the risk of heart attacks and strokes in older individuals. This can persuade potential customers to purchase the Green Co. Apples.
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