Stencil printing

The governing concept is preventing seepage at a stencil boundary. Moving the brush from the outside toward the inside directs pressure and paint away from the exposed edge, so less pigment is forced beneath the stencil. Using a small amount of moderately thick paint improves control further. Option A is correct; brush direction cannot make paint watery, change stencil transparency, or thicken paper.

The governing concept is edge control in stencil printing. Brushing outward from the stencil edge can push wet acrylic under the boundary, creating bleed and a blurred or enlarged outline. Thus, option C correctly identifies the problem. The direction does not make the colour brighter, thicken the paper, or clean the bristles. A clean result requires a stable stencil, a small paint load, and gentle dabbing or controlled strokes that do not force paint beneath the edge.