Final answer:
The marketing strategy in question, focused on specific market segments, is known as niche marketing. It allows for a highly targeted approach, serving unique needs of a distinct customer group, contrasting with the broader scope of mass marketing.
Step-by-step explanation:
A marketing strategy that involves marketing managers concentrating their efforts on particular segments of the consumer market or on particular areas or regions within a market is referred to as niche marketing. The correct answer is d) Niche marketing. This strategy is effective when a company wants to focus on a specific group of customers, allowing for a more concentrated and tailored approach to marketing that addresses the unique needs and preferences of that segment. Unlike mass marketing, which targets a large, broad market, niche marketing identifies and serves specific, distinct groups, often leading to a more loyal customer base and potentially higher profit margins for the business. An example of niche marketing could be a company that produces specialty vegan skincare products catering to eco-conscious consumers.