Final answer:
Bar tracery rose window has distinctly radiating mullions or bars.
Step-by-step explanation:
Bar tracery rose window has distinctly radiating mullions or bars. In Gothic architecture, the stone tracery that makes up the stained glass window becomes thinner and more attenuated and more complex. This can be seen in rose windows from the Rayonnant period, such as the ones found in the north and south transepts of the Cathedral of Notre Dame de Chartres in France.