Which of the following would be considered an advertisement?

An advertisement is any type of communication that promotes a product, service, or idea to potential customers. All the provided options fall under this broad definition as they serve the purpose of marketing or promoting a business.

Online social media posts are commonly used by businesses to engage with their audience, share promotions, and showcase products or services, making them a form of advertisement in the digital age. Printed flyers are traditional advertising tools that provide information about products or services and can be distributed in various locations, effectively reaching potential customers. Television commercials are among the most recognized forms of advertising, utilizing visual and audio elements to convey a message about a brand or its offerings to a wide audience.

Since each of these options represents a method of communication intended to attract customers and generate interest, they are all classified as advertisements. This comprehensive understanding of the role of various media in marketing leads to the conclusion that all the choices are valid forms of advertising.