What is the primary function of a design portfolio?

A design portfolio serves as a critical showcase of a designer's abilities, skills, and creative process. It is a visual representation that allows potential employers, clients, or collaborators to see the range of work that the designer has produced over time. By highlighting completed projects, the use of various design techniques, and the evolution of ideas from initial concept to final product, a portfolio effectively communicates the designer's unique style, problem-solving capabilities, and overall approach to design challenges.

The emphasis is not just on the final outputs but also on how the designer arrived at those solutions, including sketches, prototypes, and iterations. This narrative aspect of the portfolio helps to illustrate the thought process behind design decisions. Therefore, it becomes an essential tool for demonstrating the designer’s creative journey and capacity for innovative thinking.

In contrast, while educational credentials might provide background knowledge, they do not reflect the practical application of design skills. A client feedback tool focuses on gathering responses rather than showcasing work. Similarly, tracking sales is related to business performance rather than illustrating design capabilities. Thus, the primary function of a design portfolio is indeed to highlight the designer's abilities and creative process, making option B the most accurate choice.