Which of the following best describes the role of a fabric swatch in the design process?

A fabric swatch plays a crucial role in the design process by enabling tactile and visual evaluation, which is essential for designers to assess and select materials for their projects. By handling swatches, designers can experience the texture, weight, and drape of the fabric, allowing them to visualize how it will behave in the finished product. This direct interaction with the material helps ensure that the aesthetic qualities and functional characteristics align with the project's vision.

In contrast, while marketing strategies may utilize fabric swatches to showcase collections or promote designs, that is not their primary purpose in the design process. Similarly, while swatches may contribute to inventory management by providing a physical reference for stock, the focus of swatches is more on the immediate sensory experience than logistical concerns. Lastly, financial planning is not a primary function of fabric swatches; rather, they focus on the quality and suitability of materials. Thus, the correct answer highlights the importance of tactile and visual evaluation in the effective selection of fabrics during design development.