When should you use visuals such as graphs, photographs, or charts in your paper?

a) always, in order to add interest
b) sparingly in order to avoid distraction
c) only when necessary to support the content
d) just when they fit nicely within the formatting of the text

I think the correct answer would be C. You should only use visuals such as graphs, photographs, or charts in your paper only when needed to support the content of a presentation. For instance in research presentations, it would be better if data are presented in graphs in order for the audience to picture out clearly the results. Displaying only numbers would only confuse the audience and would not mean anything.