Final answer:
An advertisement would include any form of commercial message aimed at consumers, whether it is on a flyer, direct mail, or a vehicle's windshield. So, the correct answer includes all the provided options.
Step-by-step explanation:
An advertisement would include a commercial message in various forms to reach potential consumers. This can be seen in options such as:
- a commercial message in a flyer
- a commercial message in direct mail literature
- a price on a vehicle windshield
Therefore, the correct answer is d. all of the above. Advertisements are designed to grab attention and communicate the value or appeal of products or services to a target audience. From traditional mediums like print and billboards to modern strategies that include digital and social media, businesses utilize a diverse array of advertising methods to compete for customers in an ever-expanding marketplace.