An analyst constructs a histogram and frequency polygon of monthly returns for aggressive equity funds over a 20-year period. Which of the following statements about a histogram or a frequency polygon is FALSE（）
A. Both a histogram and a frequency polygon provide a graphical display of data found in a frequency distribution on.
B. A frequency polygon is a bar chart of continuous data that have been grouped into a frequency distribution.
C. The height of each bar in a histogram represents the absolute frequency for each return interval.