Which of the following is crucial for establishing credibility as a speaker?

Demonstrating knowledge and confidence is essential for establishing credibility as a speaker because it allows the audience to perceive the speaker as trustworthy and competent. When a speaker displays a good understanding of the topic, they convey that they have invested time and effort into their subject matter, which builds audience trust. Confidence, often portrayed through body language, tone, and delivery, further enhances this impression, making the speaker more persuasive and engaging.

In contrast, using technical jargon might alienate or confuse the audience, which can diminish credibility. Casual clothing may not align with the expectations of professionalism in certain contexts, potentially undermining a speaker's authority. Speaking without preparation usually results in a lack of coherence and clarity, leading to diminished confidence and perception of knowledge. Together, these elements emphasize that knowledge and confident delivery are fundamental to establishing a speaker's credibility.