Answer:
Visionary leaders are known for their ability to articulate a compelling vision for the future and inspire their followers to work towards achieving it. They communicate high performance expectations by outlining clear goals and objectives aligned with their vision. Additionally, they display confidence in their followers' abilities by empowering them to contribute towards realizing the vision and by providing support and resources to help them succeed. This combination of high expectations and confidence in their team's capabilities encourages followers to strive for excellence and fosters a sense of motivation and commitment. So, the correct answer is C: Visionary leaders.