Answer:
clarification of what is being studied , organization of information, use of colors to emphasize a point
Explanation:
Chart is used to represent data in the form of graphs. Using charts allows the maker to present conclusions in a way that is easier to understand by his or her readers, rather than just presenting in its raw data form. To make sure that a chart is effective, the maker should make sure that the data is organized appropriately, state what is the chart about and use colors to highlight differences or similarities.