A GIS specialist is creating a spatial map series for features that vary greatly in...

The "Adjust width" fitting strategy automatically adjusts the physical width of the scale bar to fit the map scale. This ensures that the scale bar remains logical and proportional across maps of different extents in the map series.

Adjust division value (Option A) modifies the distance represented by each division but may produce inconsistent scale bar sizes.

Adjust number of divisions (Option C) changes the count of divisions rather than adjusting for proportional display across maps.

Therefore, the correct answer is B.