Final answer:
Targeting a demographic segment involves focusing marketing efforts on a specific group of people with shared characteristics. Option B, marketing prepackaged lunches for children, best represents targeting a demographic segment.
Step-by-step explanation:
The description that best represents targeting a demographic segment is Option B: Marketing prepackaged lunches for children. Targeting a demographic segment means focusing on a specific group of people with shared characteristics or interests. In this case, the target market is children, and the marketing strategy is aimed at promoting prepackaged lunches specifically for them.
For example, the advertisements for these lunches might feature colorful packaging and cartoon characters to appeal to children, and the slogans could focus on the convenience and fun of these lunches. By targeting a specific demographic segment, the company can tailor its marketing efforts and products to meet the needs and preferences of that particular group.