Which chart type fills under the line to emphasize total magnitude?

• A. Area chart
• B. Line chart
• C. Pie chart
• D. Histogram

Answer: (A)

When you want to emphasize the total magnitude across a range, an area chart is the best choice because it fills the space under the line. That filled area visually communicates how large the total values are over the interval, not just how the value changes point by point. A line chart, by contrast, shows the path or trend but doesn’t highlight the accumulated amount beneath it. A pie chart illustrates parts of a whole at a single point in time, so it doesn’t convey totals across a sequence. A histogram focuses on the distribution of a variable’s values, not the cumulative magnitude along a continuum.