In order to best illustrate these comparisons, Elaine used a: bar graph.
Bar graph or bar chart can be defined as a graphical representation of data or information in which data are categorize based on their frequency.
Based on the given scenario Elaine should make use of bar graph as this will help to illustrate the comparisons.
Therefore In order to best illustrate these comparisons, Elaine used a: bar graph.
Learn more about bar graph here:https://brainly.com/question/24741444
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