If a dry sample is lighter than the wet sample, what adjustment should be made next time?

Correct answer: Make the wet mixture slightly darker than the final target

The governing concept is drying shift: many paints appear darker or more saturated when wet and lighter after the vehicle evaporates. If the dry test is lighter than the intended result, the next wet mixture should be made slightly darker, making option A correct. Adding white would usually lighten it further, removing a complementary colour does not directly compensate for the value change, and refusing to mix gives no adjustment. A small test swatch should always guide the final ratio.