Answer:d. All of these answers are correct.
Explanation:
-Visual aids mostly make your speech stronger as people can view what you are talking about.
-However you should be careful that they do not take over your presentation , it is very likely that you may feel inclined to look away from the audience and focus on the visual that you are explaining.
-This is not a good idea, if you are delivering a speech you want to maintain eye contact to keep audience focused on what you are delivering otherwise you may lose their attention .
-You need to occasionally or periodically look at your visuals whilst maintaining eye contact during most of your time.
-You also need to display visuals only when you are discussing them otherwise audience will focus on the visuals and not on what you are discussing at that particular moment .
-Giving visuals to the audience will also take their attention away from your speech and make them focus on visuals, they may even start discussing those visuals amongst each other .
-If you want them to take some information home from your speech , you will need to give them hardcopies of your speech at the end of your presentation