Final answer:
Senior leaders involved in a diversity council act as catalysts for change, aligning organizational functions and enhancing commitment to diversity initiatives.
Step-by-step explanation:
The best description of the impact of having senior leaders directly involved in a diversity council is being a catalyst for change that aligns functions and responsibilities and creates greater commitment, efficiency, effectiveness, and productivity in the organization. Senior leaders play a crucial role in shaping the culture and operations within an organization. When they participate in a diversity council, their involvement can signify the importance of diversity and inclusion objectives, lead to better alignment across different departments, and enhance the commitment levels of other employees toward the diversity strategy. This direct involvement can also be more efficient than top-down mandates, as leaders can understand and address the nuanced challenges that might arise.