Which of the following is a qualification for an applicant seeking an architectural license?

The correct choice highlights the requirement for an architectural license related to barrier-free design, which is crucial in modern architectural practice. Demonstrating knowledge of barrier-free design is essential because it ensures that architects create spaces accessible to all individuals, including those with disabilities. This knowledge reflects an understanding of regulations such as the Americans with Disabilities Act (ADA) and other local building codes that mandate accessibility features in public spaces and buildings.

In the context of licensing, architects are expected to be well-versed in both the technical and ethical responsibilities of their profession, which includes ensuring that environments are inclusive. This qualification is a significant part of the education and training process that prepares applicants to meet the diverse needs of society.

The other options do not align with the established qualifications needed for obtaining an architectural license. High school diplomas and non-architectural work experience may contribute to a person's overall skill set, but they are generally not recognized as formal requirements for licensure. College coursework is a foundational prerequisite, but specific coursework focused on accessible design principles is directly relevant to licensing and practice in architecture.