Final answer:
Using a full sheet of paper for speaking notes can distract the speaker, causing disruption in the speech delivery.
Step-by-step explanation:
The question asks about the disadvantage of using a full sheet of paper for speaking notes. The most accurate disadvantage listed is that it can be distracting to the speaker. When using a full sheet, the speaker might need to frequently look down, flip pages, and could potentially lose track of their place, which can disrupt the flow of their speech and impair audience engagement. In contrast, smaller note forms such as index cards or sticky notes are more discreet and can be organized in a way that makes it easy to quickly glance down for a cue without being too distracting.