Final answer:
The best means to visually present the conceptual design of a convention center to the community is through conceptual perspective sketches combined with scaled working models, as they provide both a real-life perspective and an interactive physical representation of the space.
Step-by-step explanation:
When communicating the conceptual design of a large space such as a convention center to the community, the best means of visual presentation would combine both graphical sketches and physical models. Conceptual perspective sketches with scaled working models (Option A) provide a more comprehensive representation. Perspective sketches allow viewers to visualize the space as it would appear in reality, giving a sense of depth and scale, while scaled models provide a tactile, interactive experience, allowing stakeholders to view the building from all angles and understand the spatial relationships between its different parts.
For instance, architects planning large buildings often construct tabletop physical models to demonstrate how new constructions will integrate with their surroundings. Such models, although not as detailed as the final product, are effective in showcasing the design to investors, community members, and other stakeholders. This interactive form of presentation can be instrumental in generating support and enthusiasm for the project.