<human>: Goal: In order to paint barn doors,

Which of the following methods is more reasonable for accomplishing this goal?

OPTIONS:
- dip a brush in paint thinner, then apply strokes to the doors until they're covered.
- dip a brush in paint, then apply strokes to the doors until they're covered.
<bot>: dip a brush in paint, then apply strokes to the doors until they're covered.