Final answer:
Product advertising is the correct answer as it highlights the specific benefits of a good or service to encourage purchase.
Step-by-step explanation:
The form of advertising that promotes the benefits of a specific good or service is known as product advertising. Product advertising focuses on communicating the particular features, advantages, and benefits of a product or service to the target audience to encourage purchase. It differs from other types of advertising like institutional advertising, which aims to build a company's image; competitive advertising, which highlights a product's advantages over competitors without naming them; and comparative advertising, which directly compares a product with competitors' products.