Final answer:
In the late 1800s, advertisers used techniques like department stores, targeted magazine ads, and clever brand names, but did not use paid TV shows for product features as television was not yet invented.
Step-by-step explanation:
In the late 1800s, advertisers used a variety of techniques to reach consumers and persuade them to purchase their products. The development of department stores and the use of targeted magazine ads were among the prominent methods. Advertisers also created clever brand names to differentiate their products in a market that had become crowded with alternatives. However, the option that was not a device used by advertisers during that time period was B) Paid TV shows for product features, as television had not yet been invented or become a common medium for advertising. Instead, other forms of media such as newspapers and magazines were the main channels for delivering ads to consumers.