Which method is correct for making a controlled series of dots with a brush?

Correct answer: Touching the tip with equal pressure and spacing

Controlled dot patterns depend on repeatable contact, pressure, and spacing. Touching the surface with the brush tip using nearly equal pressure and intervals produces dots of similar size and a regular rhythm, so option D is correct. Random pressure and colour create inconsistency, dragging makes lines, and excess water causes uncontrolled spreading rather than clear dots.