The correct answer is C. If visual aids are not prepared well or relevant, they can Take away from the presentation.
Explanation
Visual aids are tools used to support a speech or oral intervention to visually express the themes and concepts of the intervention to give a better understanding to the public. These aids are the best way to support oral interventions since several scientific studies indicate that visual communications are synthetic messages that help to convey a message effectively. However, if this tool is not used in a good way it cause an adverse result since it can generate confusion in the public or take away from the presentation. According to the above, the correct answer is C.
