The correct answer is A. Practice using the aid
Step-by-step explanation:
A presentation aid is any tool or resource that supports your words and ideas and help you to achieve the main goal during a presentation or speech, examples of presentation aids include videos, images, slides, and web pages. Additionally, for a presentation aid to be effective it needs to helps you to deliver the presentation better or help the audience to understand the ideas of the speaker, which means the presentation aid should not make the presentation complicated or confused for the audience or speaker.
Because of this one of the main steps for preparing an aid and guaranteeing the aid really supports your presentation is practice using the aid, this means you can do a trial presentation for yourself or some friend to know how to integrate appropriately the aid during the presentation and determine if an aid is effective to explain your ideas, in this way you will also feel more confident during the real presentation and know when and how do you use the aid. Thus, one of the most important parts of preparing a presentation aid is practice using the aid.