Which working sequence is most suitable for good results in watercolour technique?

Correct answer: Planning then light sketch then light washes layers and final details

The governing concept is controlled layering, especially the watercolour principle of moving from light values toward darker values while preserving the paper where needed. First plan the composition, make a light sketch, apply broad and pale washes, allow suitable drying between layers, and add stronger accents and details at the end. B is correct. Starting dark limits correction, applying everything at once reduces control, and repeated work on a wet surface can muddy or damage the paper.