Explanation:

Advertising is a marketing tactic involving paying for space to promote a product, service, or cause. The actual promotional messages are called advertisements, or ads for short. The goal of advertising is to reach people most likely to be willing to pay for a company’s products or services and entice them to buy.
Advertising messages themselves are designed to persuade an individual to buy a company’s goods or services. Even in business-to-business transactions, individuals have to first be convinced to choose one product over another.