Which of the following is an example of a "paucity" in a discussion?

The term "paucity" refers to a scarcity or insufficient quantity of something. In the context of a discussion, it signifies a lack or small amount of evidence, which is precisely what choice C represents. When a discussion suffers from a paucity of evidence, it indicates that there is not enough supporting information available to substantiate claims or arguments being made. This inadequacy can weaken the overall quality and persuasiveness of the discussion.

The other choices highlight situations where there is plenty or a significant amount of something, which is contrary to the essence of "paucity." A wealth of information, an abundance of opinions, and a robust analysis all indicate a richness or thoroughness that does not align with the concept of having a small or limited amount. Thus, choice C is the only option that correctly illustrates the concept of a paucity in a discussion.