Correct me if I'm wrong but I believe it is phrase or clause containing three or more words at the beginning or end of a sentence.
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.
The answer to your question is Predetermination
Y donald trump is better then obama or vice versa.