A colour drop spread uncontrollably on a very wet watercolour surface. What should be done for more controlled spreading?

Correct answer: Wait until the surface sheen reduces slightly

Watercolour spreading depends on the moisture of the paper. A very glossy surface contains excess water, so the pigment travels rapidly and unpredictably. Waiting until the visible sheen reduces slightly leaves the paper damp rather than flooded; the colour can then spread softly but remain controllable. Adding water or loading more water into the brush increases spreading, while sharply tilting the paper makes the flow less predictable. Therefore, option B is correct.