Final answer:
A popular and memorable product ad is the Coca-Cola polar bear commercials, while a poor example could be an ad that uses misleading or false information.
Step-by-step explanation:
Common persuasion messages, such as commercials, are often used to promote products. When it comes to favorite product ads, the choice is subjective and can vary from person to person. However, one popular and memorable product ad is the Coca-Cola polar bear commercials. These commercials feature cute animated polar bears and create a warm and joyful feeling, which resonates with many viewers. The ad successfully promotes the product and leaves a positive impression.
On the other hand, a poor example of a product ad could be one that uses misleading or false information to persuade viewers. For example, an ad that claims a certain weight loss product can provide instant and effortless results without any scientific evidence or reputable testimonials would be considered a poor example. These types of ads can deceive consumers and potentially harm their health.