How can edges be used to emphasise the focal point in watercolour?

Correct answer: Use sharper edges near the focal point and softer edges in other areas

The governing design principle is emphasis through contrast in edge quality. Sharp or clearly defined edges attract attention, so placing them near the focal point makes that area visually dominant. Softer edges elsewhere reduce competition and suggest less importance or distance. Option C is correct. Making every edge hard creates equal emphasis, while making every edge soft removes direction; leaving the focal area unpainted is not a general solution.