Who can be appointed as a member of the Board from the nonpublic sector?

The correct choice indicates that the individuals who can be appointed as members of the Board from the nonpublic sector are those registered as optometrists in California who are actively engaged in practice. This is significant because the Board's primary function is to oversee the practice of optometry in California, ensuring the profession is maintained at high standards and that practitioners adhere to the laws and regulations governing optometry. Having members who are currently practicing optometrists provides valuable insight into the challenges and realities of the profession. Their active involvement ensures that the Board's decisions reflect the interests and needs of those directly engaged in providing eye care.

The other options do not align with the criteria for Board membership as they do not focus on the professional qualifications and regulatory knowledge that practicing optometrists possess. Retail experience in optical supplies or managing optical businesses might not provide the necessary understanding of the clinical and regulatory aspects that are essential for effective governance of the optometry practice. Similarly, experience in educational management does not necessarily relate to the practical and regulatory issues faced by practicing optometrists, thus making it less relevant for Board membership.