<human>: Which of the following solutions is better for the following goal:
How to apply stain to bone.

OPTIONS:
- Using a paint brush, drip the brush into the stain container. Brush the stain onto the bone until you reach desired opacity.
- Using a hair brush, drip the brush into the stain container. Brush the stain onto the bone until you reach desired opacity.
<bot>: Using a paint brush, drip the brush into the stain container. Brush the stain onto the bone until you reach desired opacity.