What is the benefit of recording the mixing ratio?

Correct answer: It becomes easier to reproduce the same colour

The governing concept is reproducibility in colour mixing. A written ratio records how much of each paint was used, such as two parts yellow-orange to one part red. If the same mixture is needed later, the artist can repeat that proportion instead of relying on memory or guesswork. Therefore, option B is correct. Recording a ratio does not change drying time, brush softness, or the colour category; it only makes the result easier to recreate consistently.