The Height attribute sets the size of the text characters vertically in AutoCAD text styles.
To apply a text style to existing text, select the objects and change their style property to the desired style in the properties panel.
Option B uses FILTER to select rows where StyleName is 'Heading' and counts them correctly.
Option B is invalid syntax because CALCULATE needs a filter function.
Option B counts 1 or 0 but COUNTX counts rows, so it works but is less direct.
Option B tries to sum a boolean expression, which is invalid.
A pie chart effectively shows the proportion of each text style used out of the total text objects.
Line charts are for trends over time, scatter plots for relationships, and stacked bars for grouped comparisons.
In AutoCAD, the STYLE command creates the style and sets the font, but text height is set separately or left to default 0 (height set at text creation).
Thus, setting height directly in the STYLE command is invalid.
