Final answer:
Sellers use mass marketing when they offer one-size-fits-all products to appeal to a broad audience, as opposed to market segmentation or demographic segmentation which tailor products to specific consumer groups. The correct answer is option c.
Step-by-step explanation:
When sellers offer one-size-fits-all products that will appeal to most buyers, they are engaging in mass marketing. This approach assumes a large number of people will buy the same product without the need for any significant differentiation. In contrast, mass production refers to the actual manufacturing process where products are made in large quantities using standardized processes. Market segmentation and demographic segmentation involve dividing the market into distinct groups of consumers with different needs or characteristics and targeting specific products to meet those needs.
Firms have a profit incentive to appeal to a wide audience, which is why mass marketing strategies can be beneficial. A homogenous product offering, such as in a perfectly competitive market where products are identical and sellers and buyers are well informed about products, simplifies production and marketing. However, in a market that values variety and product differentiation, such as a monopolistic competition, businesses may prefer segmentation strategies to cater to various consumer preferences.