Which of the following qualifies as an advertisement?

An advertisement is any form of communication that promotes a product or service to potential customers, and all the options provided display characteristics of advertisements in different formats.

A price tag on a vehicle windshield qualifies as an advertisement because it provides essential information about the vehicle being sold, including its price and potentially features, which directly attracts attention from prospective buyers. It serves a promotional purpose by indicating the product's availability and terms.

A flyer in a mailbox also qualifies, as it is a common method of advertising used to reach potential customers. Flyers often contain persuasive information about sales, promotions, or the benefits of a dealership’s offerings, aiming to generate interest and drive foot traffic.

A television commercial is a classic and widely recognized form of advertisement that is designed to reach a broad audience. Commercials convey engaging messages about vehicles, promotions, or the dealership as a whole.

Since each of these examples fulfills the role of promoting vehicles or services to consumers in different ways, they are all valid forms of advertisement.