Which of the following best describes Leon Sullivan's contribution?

Leon Sullivan played a significant role in both civil rights and corporate governance, and one of his notable achievements was being the first African American appointed to the Board of Directors of General Motors. This milestone not only represented a breakthrough for African Americans in corporate America but also highlighted the importance of representation in influential positions within major corporations. Sullivan's work extended beyond this appointment; he was also known for his advocacy for social justice, economic empowerment, and equality. His legacy is characterized by his efforts to improve conditions for African Americans and promote diversity in the business world, making his appointment to the GM Board an impactful aspect of his contributions.