Write the next sentence in the following story.

How to oxide concrete
Select your color.
There are a multitude of oxides available that you can add to concrete. Choose from red, light brown, dark brown, yellow, and black, among other colors.

OPTIONS:
- It's also a good idea to buy and soak your concrete of choice in clear water before you proceed. A homemade infusion can be rubbed across concrete with plastic or glass.
- Avoid mixing these color schemes together as they will bleach the concrete. Label concrete with a " h " or " gb.
- Some of these colors are ideal to have on slabs of concrete, while others are problematic due to damage. Either leave this option out, or slightly paint the concrete slightly-colors like blue can be hazardous to you and your skin.
- Black is typically used in home driveways and gas stations because it hides oil stains and grime. Brown hues are common in industrial flooring and some homes.. The answer should be
Black is typically used in home driveways and gas stations because it hides oil stains and grime. Brown hues are common in industrial flooring and some homes.