Answer:
To enhance the effect of the speaker’s word
To increase audience engagement
To remind the speaker of key points to talk about
Step-by-step explanation:
Visual aid is essential to the audience since they help them to understand and always remember the information that is being discussed. For instance, when reading a plain text, it may be difficult for others to understand especially those with some visual impairment.
Most people get to learn of the visuals through listening; therefore, visual aid enables the audience to remember what has been said even if they want to digest the information later at their own time. This is an advantage that is just listening because the percentage absorbed is way low when compared to people with visual aids.