What is the difference between a bar graph and a histogram? OA. There is no difference between these two graphical displays. OB. The bars on a bar graph do not touch while the bars of a histogram do touch. OC. The bars in a bar graph may be of various widths while the bars of a histogram are all the same width. O D. The bars in a bar graph are all the same width while the bars of a histogram may be of various widths.

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