How can you simplify a pie chart with many categories?

• A. A line chart with 3 data points.
• B. The column chart showing the percentage of conversions for all 50 states may not have enough room to label each state clearly.
• C. A bar chart with 5 categories.
• D. A pie chart with 8 slices.

Answer: (B)

Pie charts work best when there are only a few categories, because each slice becomes harder to read as the number grows. When you have data for many categories, labeling and comparing all the slices can get cluttered and confusing. Switching to a column (or bar) chart allows you to display every category clearly, with space for readable labels and an easy visual comparison of values.

In the given example, showing the percentage of conversions for all 50 states in a column chart keeps every state visible and labeled, making it straightforward to scan and compare how each state performs. That preserves the full data set while improving readability, which is why this option is the best choice. The other ideas either reduce the number of categories or still rely on a pie, which doesn’t solve the readability problem with many categories.