Final answer:
A marketer focused on making a brand distinctive to spur demand is implementing a product differentiation strategy, making the brand stand out through various features and perceptions, often bolstered by strategic advertising.
Step-by-step explanation:
The marketer who tries to convince consumers that a particular brand is distinctive to increase demand is concerned with product differentiation. This strategy involves any action that firms use to make their products seem different from their competitors'.
Firms can differentiate their products through various means, such as the physical aspects of the product, the location from which it is sold, intangible aspects, and perceptions of the product. Differentiated products are ones that stand out in one of these ways,
and advertising plays a key role in shaping the perceptions that create product differentiation. Successful advertising can lead to a monopolistic competition situation where the firm's perceived demand curve becomes more inelastic, allowing to sell a greater quantity or to charge a higher price.