Which of the following contributes to a debate being more renowned?

Candidate visibility and recognition significantly contribute to a debate being more renowned because well-known candidates often attract larger audiences and media attention. When participants are familiar with the candidates' names, backgrounds, and previous performances, they are more likely to engage with the debate, either by watching it live, discussing it on social media, or participating in related events. Additionally, recognized candidates can stir public interest and discussion, making the debate itself more significant in the public sphere.

Furthermore, candidates with established visibility often have previous platforms or achievements that enhance their credibility, making their arguments and positions more impactful. This recognition can also lead to increased viewership, analysis, and commentary, further amplifying the debate's reach and renown. The other factors, while important in their own right, do not have the same direct correlation with the broad public recognition of the debate as candidate visibility and recognition do. For example, while moderators can influence the debate's quality, they do not typically attract the same level of public attention as the candidates themselves.