Which of the following is a typical example of promotion in design?

The choice of posters and leaflets as a typical example of promotion in design is appropriate because promotional materials are specifically created to inform, advertise, and persuade audiences about products, services, or events. Posters and leaflets are visual communication tools that effectively capture attention and convey messages quickly through imagery and text. They are intended to be displayed in prominent locations to reach a wide audience, making them a fundamental aspect of promotional design.

In contrast, 3D modeling primarily focuses on creating visual representations of objects for purposes such as product visualization, not necessarily for promotional activities. Drafting floor plans is a technical aspect of architecture and interior design, involving the precise drawing of layouts for functional use rather than for marketing. Analyzing data trends is more related to research and decision-making processes rather than promotion, as it involves interpreting data rather than creating visual promotional content. Therefore, posters and leaflets stand out as quintessential elements of promotional design.