What is the purpose of an "advertisement"?

The purpose of an advertisement is to promote a product, service, or event. Advertisements are designed to create awareness and generate interest among potential customers. They highlight the features and benefits of what is being offered to persuade the audience to take action, such as making a purchase, visiting a website, or attending an event. The effectiveness of an advertisement is often measured by its ability to reach its target audience and motivate them to engage with the product or service being promoted.

While other options may touch on related concepts—in providing entertainment or assessing effectiveness—these do not capture the primary aim of advertising, which is focused on promotion and encouraging action from consumers. Summarizing a product's history could provide context but does not align with the central goal of driving immediate consumer response or interest.