Which combination is most effective for creating a stroke that begins broad and ends extremely thin with the same flat brush?

Correct answer: Press the broad face first, then reduce pressure and turn onto the edge

The governing concept is coordinated pressure and brush angle. Pressing the broad face first produces a wide beginning; gradually reducing pressure and turning the flat brush onto its edge narrows the contact area until the stroke becomes extremely thin. Option B is correct. Constant pressure keeps the width similar, excess water weakens control, and handle rotation alone does not create the required contact change.