Mosaic Plots and Grouped Bar Graphs Display the Same Basic

Mosaic plots and grouped bar graphs display the same basic data, but mosaic plots only show the frequencies, not the raw values. While this may seem to be a weakness, in which way are mosaic plots potentially better than grouped bar graphs?

A) They are more widely used and therefore better understood by readers.
B) They are not as prone as grouped bars graphs to rounding error, which causes inaccuracy.
C) They are often better at indicating associations between treatment and response variables.
D) They take up less space on the page.