Which property helps an artist apply a new layer over dried acrylic paint?

Correct answer: Formation of a water-resistant layer after drying

Acrylic paint is water-based when wet, but its binder forms a stable, water-resistant film as it dries. Because the dried layer does not readily dissolve when the next wet layer is brushed over it, the artist can build colour without reactivating the underpainting. Thus option B is correct. Dried acrylic does not become permanently sticky, automatically glossy, or water-soluble again.