In a calligraphic stroke the direction is correct but thick and thin sections change abruptly. Which practice is most useful?

Correct answer: Repeatedly practise gradual changes of pressure and brush angle at slow speed

The governing skill is pressure and angle control in brush technique. Calligraphic width changes should be produced gradually by easing pressure and rotating or inclining the brush smoothly, not by sudden hand movements. B is correct because slow repeated drills build consistent muscle control before speed is added. Thick paint does not fix abrupt transitions, a tight grip reduces sensitivity, and changing brushes prevents useful coordination practice.