Concept:Advertising that is aimed at a specific group of consumers rather than the general public.Explanation:Direct advertising is intentionally designed to reach a particular audience or market segment.Mass advertising targets the general public, not a specific group.Persuasive advertising focuses on convincing consumers to buy, while indirect advertising delivers the message in a subtle manner.Since the question states advertising efforts are geared towards a particular audience, the correct term is direct advertising.Answer:B. direct advertising